Ravi is counting his marbles at home. He notices that his collection doubles every week. If he starts with 1 marble, how many will he have after 3 weeks?
A1
B2
C4
D8
💡 Explanation
Ravi has 1 marble, which doubles each week: Week 1 = 2, Week 2 = 4, Week 3 = 8.
Question 2Difficulty 1
Anaya is planting flowers in her garden. She plants 2 flowers on the first day, and each subsequent day she plants double the amount of flowers from the previous day. How many flowers will she plant on the third day?
A2
B4
C8
D16
💡 Explanation
Day 1 = 2 flowers, Day 2 = 4 (2x2), Day 3 = 8 (4x2).
Question 3Difficulty 1
During a school science project, Aman discovers that bacteria reproduce every hour. If he starts with 1 bacterium, how many will he have after 2 hours?
In a local temple, Priya sees that the number of prayer lamps increases by a factor of 3 every week. If there is 1 lamp, how many lamps will there be after 2 weeks?
At the cricket ground, Raju's team scores runs in powers of 2. If they score 2 runs in the first over, how many will they score in the third over?
A2
B4
C8
D16
💡 Explanation
First over = 2 runs, second over = 4 runs (2x2), third over = 8 runs (4x2).
Question 6Difficulty 1
Sita is buying sweets for Diwali. She buys 1 sweet on the first day, doubling her purchase each subsequent day. How many sweets does she buy on the second day?
A1
B2
C4
D8
💡 Explanation
Day 1 = 1 sweet, Day 2 = 2 sweets (1x2).
Question 7Difficulty 1
Vikram has a collection of comic books. He starts with 1 book, and every month he buys 2 more books than he did the previous month. How many books will he have after 3 months?
At the local market, Anil sees that the price of mangoes increases by a factor of 2 every week. If the price starts at 5 rupees, what will it be after 2 weeks?
During a family picnic, Arjun collects 1 pebble on the first day. If he keeps doubling his collection each day, how many pebbles will he have on the fourth day?
A4
B8
C16
D32
💡 Explanation
Day 1 = 1, Day 2 = 2, Day 3 = 4, Day 4 = 8.
Question 10Difficulty 1
In a local library, Nisha discovers that the number of books increases by a factor of 3 each year. If there is 1 book in the first year, how many will there be after 2 years?
A1
B3
C9
D27
💡 Explanation
Year 1 = 3 books (1x3), Year 2 = 9 books (3x3).
Question 11Difficulty 2
While helping her mother in the kitchen, Neha notices that the amount of sugar needed for a cake recipe increases exponentially. If the recipe requires 2 cups of sugar, how much will it require for a cake that is 3 times larger?
A2 cups
B4 cups
C6 cups
D8 cups
💡 Explanation
For a cake that is 3 times larger, sugar needed is 2 cups x 3 = 6 cups.
Question 12Difficulty 2
In a cricket match, Ravi's team scores runs in powers of 3. If they score 3 runs in the first over, how many will they score in the second over?
A3
B6
C9
D12
💡 Explanation
Runs scored in second over = 3^2 = 9 runs.
Question 13Difficulty 2
At the school science fair, Aditi exhibits a project where the number of balloons doubles every hour. If she starts with 4 balloons, how many will she have after 2 hours?
During the Makar Sankranti festival, Priya's family prepares sweets. If they make 5 laddus, and each day they decide to make 2 times as many as the previous day, how many will they make on the fourth day?
A20
B40
C80
D160
💡 Explanation
Day 1 = 5, Day 2 = 10, Day 3 = 20, Day 4 = 40.
Question 15Difficulty 2
In a school project, Aman is planting trees. He plants 2 trees in the first week, and every week he plants 3 times as many trees as he did the previous week. How many trees will he plant in the third week?
A6
B18
C54
D162
💡 Explanation
Week 1 = 2 trees, Week 2 = 6 trees (2x3), Week 3 = 18 trees (6x3).
Question 16Difficulty 2
In a local market, Sita sees that the price of mangoes triples every month. If the price starts at 10 rupees, what will it be after 2 months?
During a family trip, Rahul collects stickers. He starts with 5 stickers, and each week he collects twice as many as the previous week. How many stickers will he have after 3 weeks?
In a math competition, Riya's team scores points in powers of 4. If they score 4 points in the first round, how many points will they score in the third round?
In a community garden, Aditi plants 1 seed on the first day, and every day she plants 5 times as many seeds as the previous day. How many seeds will she plant on the third day?
A5
B25
C125
D625
💡 Explanation
Day 1 = 1 seed, Day 2 = 5 seeds (1x5), Day 3 = 25 seeds (5x5).
Question 20Difficulty 2
While helping at the local bakery, Priya learns that the number of pastries made increases by a factor of 2 every day. If they start with 10 pastries, how many will they have after 3 days?
A40
B80
C160
D320
💡 Explanation
Day 1 = 20 pastries (10x2), Day 2 = 40 (20x2), Day 3 = 80 (40x2).
Question 21Difficulty 3
During a school project, Aman is measuring how many seeds he can plant. If the seeds he plants triple every time, starting with 1 seed, how many seeds will he have planted after 4 times?
A27
B81
C243
D729
💡 Explanation
After 4 times, it will be 3^4 = 81 seeds.
Question 22Difficulty 3
In a cricket match, Raju's team scores runs as powers of 5. If they score 5 runs in the first over, how many will they score in the fourth over?
A25
B125
C625
D3125
💡 Explanation
4th over = 5^4 = 625 runs.
Question 23Difficulty 3
During Diwali, Priya's family lights diyas. If they light 2 diyas and double the number each day, how many will they light on the fourth day?
A8
B16
C32
D64
💡 Explanation
Day 1 = 2, Day 2 = 4, Day 3 = 8, Day 4 = 16.
Question 24Difficulty 3
At the market, Neha sees that the price of vegetables increases by powers of 3. If the price of 1 kg is 10 rupees, what will it be after 3 increases?
A90
B270
C810
D2430
💡 Explanation
After 3 increases, price = 10 x 3^3 = 270 rupees.
Question 25Difficulty 3
Ravi is saving money every week. If he saves 10 rupees the first week and doubles his savings every week, how much will he save in the fifth week?
In a local festival, Sita's family prepares sweets. If they start with 5 sweets and each day they make 3 times as many as the previous day, how many sweets will they make on the third day?
A45
B135
C405
D1215
💡 Explanation
Day 1 = 5, Day 2 = 15, Day 3 = 45.
Question 27Difficulty 3
During a science project, Priya learns that the number of bacteria in a petri dish triples every hour. If she starts with 2 bacteria, how many will be there after 3 hours?
A6
B18
C54
D162
💡 Explanation
After 3 hours, it will be 2 x 3^3 = 54 bacteria.
Question 28Difficulty 3
In a vegetable garden, Rohan plants 2 seeds, and each week the number of seeds he plants triples. How many seeds will he have planted after 4 weeks?
During the festival, Aditi's family buys fruits. If they buy 3 fruits and every week they triple their purchase, how many fruits will they buy after 4 weeks?
A81
B243
C729
D2187
💡 Explanation
After 4 weeks, it will be 3 x 3^4 = 243 fruits.
Question 30Difficulty 3
In a local bakery, if the number of pastries made doubles every day and they start with 10 pastries, how many will they have after 5 days?
A320
B640
C1280
D2560
💡 Explanation
After 5 days, it will be 10 x 2^5 = 320 pastries.
Question 31Difficulty 4
During a local festival, Riya's family prepares sweets. If they start with 10 sweets, and every day they make 4 times as many sweets as the previous day, how many sweets will they have on the fifth day?
A640
B1280
C2560
D5120
💡 Explanation
Day 1 = 10, Day 2 = 40, Day 3 = 160, Day 4 = 640, Day 5 = 2560.
Question 32Difficulty 4
In a cricket match, if Ravi's team scores points in powers of 6, and they score 6 points in the first round, how many points will they score in the sixth round?
A36
B216
C1296
D7776
💡 Explanation
6th round = 6^6 = 1296 points.
Question 33Difficulty 4
During the festival of Holi, Priya's family colors the water. If they start with 3 liters of color and triple it each day, how much color will they have on the fourth day?
A27 liters
B81 liters
C243 liters
D729 liters
💡 Explanation
Day 1 = 3 liters, Day 2 = 9 liters, Day 3 = 27 liters, Day 4 = 81 liters.
Question 34Difficulty 4
In a local farming community, Rohan plants 4 seeds and each week the number of seeds he plants increases by a factor of 5. How many seeds will he have planted after 3 weeks?
Sita is saving money for a new bike. She starts with 100 rupees and doubles her savings every month. How much will she have after 6 months?
A6400
B12800
C25600
D51200
💡 Explanation
After 6 months, it will be 100 x 2^6 = 6400 rupees.
Question 36Difficulty 4
In a local festival, if Nisha's family makes sweets that quadruple every day, and they start with 6 sweets, how many sweets will they have on the fifth day?
A960
B3840
C15360
D61440
💡 Explanation
Day 1 = 6, Day 2 = 24, Day 3 = 96, Day 4 = 384, Day 5 = 1536.
Question 37Difficulty 4
During a school project, Ravi learns that money doubles every year. If he invests 500 rupees, how much will he have after 5 years?
A8000
B16000
C32000
D64000
💡 Explanation
After 5 years, it will be 500 x 2^5 = 16000.
Question 38Difficulty 4
In a local cricket tournament, if a player scores 2 points in the first match and triples his score in each subsequent match, how many points will he have after 6 matches?
A729
B2187
C6561
D19683
💡 Explanation
After 6 matches, points = 2 x 3^6 = 1458.
Question 39Difficulty 4
In a local festival, if Riya's family has 1 rupee and they double it every day, how much will they have after 10 days?
A1024
B2048
C4096
D8192
💡 Explanation
After 10 days, it will be 1 x 2^10 = 1024.
Question 40Difficulty 4
In a local marketplace, if the number of customers triples every hour and starts with 10 customers, how many will be there after 5 hours?
A2430
B7290
C21870
D65610
💡 Explanation
After 5 hours, it will be 10 x 3^5 = 2430.