Solved Questions on Whole Numbers
1. The cost of a bike is $980.50. Find the cost of 2035 such bikes.
a) $1995317.50
b) $1995137.50
c) $1993517.50
d) $1959317.50
Answer: a) $1995317.50
Explanation: Cost of a bike = 980.50
Number of bikes = 980.50 × 2035
Cost of 2035 bikes = 1995317.50
Therefore, the cost of 2035 bikes is $1995317.50.
2. The cost of a flat is $42180. If there are 36 similar flats in a building, how much money will be collected by selling all the flats?
a) 1581480
b) 1518480
c) 1518840
d) 1518440
Answer: b) 1518480
Explanation: Cost of one flat = $42180
Number of similar flats = 36
Cost of 36 flats = $42180 × 36 = 1518480
3. 36 families went on trip which cost them $12168 If each family share the cost equally, how much did each family pay?
a) $330
b) $332
c) $336
d) $338
Answer: d) $338
Explanation: Total number of families = 36
Total cost paid by 36 families = $12168
Cost paid by each family = $12168 ÷ 36 = $338
4. Find the product of the greatest 3-digit number and the smallest 2-digit number.
a) 9990
b) 9980
c) 9970
d) 9690
Answer: a) 9990
Explanation: The greatest 3-digit number = 999
The smallest 2-digit number = 10
Therefore, Product = 999 x 10 = 9990
5. Jessica has number cards from 1 to 100. She wants to know how many whole numbers are there in between number cards 21 and 61. Choose the correct answer:
a) 38
b) 41
c) 39
d) 40
Answer: c) 39
Explanation: The numbers lie between 21 and 61 are
22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59 and 60.
Therefore, there are 39 numbers in total.
Practice Questions on Whole Numbers
1. Jenny used 18 m of cloth to make 4 similar curtains and 6 similar cushion covers. She used 3 m of cloth to make each curtain. How much cloth did she use to make each cushion cover?
a) 5 m
b) 4 m
c) 6 m
d) 1 m
Answer: d) 1 m
2. The cost of a electric lamp is $28.50. Find the cost of such 1085 electric lamp (in $).
a) 30234.2
b) 30922.5
c) 45638.2
d) 45273.8
Answer: b) 30922.5
3. A woman has $255 in her purse. She gives $35 to each of her five children. How much money does she have left?
a) $45
b) $56
c) $80
d) $89
Answer: c) $80
4. My bank account contains $3621 and I make monthly withdrawals of $78 for 12 months. What is my new bank balance?
a) 2908
b) 2873
c) 2765
d) 2685
Answer: d) 2685
5. There are 22 questions on a math test. The time allowed for the test is 50 minutes. Between which two numbers does the time allowed for each question lie?
a) 1 min and 2 min
b) 2 min and 3 min
c) 3 min and 4 min
d) 4 min and 5 min
Answer: b) 2 min and 3 min
6. There are 764 boys in the school and 513 girls in the school. Find the total number of children in a school.
a) 1198
b) 1200
c) 1277
d) 1298
Answer: c) 1277
7. 470988 books are to be arranged equally in shelves. If 378 books are arranged in each shelf, how many shelves will be needed?
a) 1277
b) 1259
c) 1246
d) 1222
Answer: c) 1246
8. Mr. John's new hybrid car gets him 50 miles per gallon. If Mr. John gets a full tank with 14 gallons of gas, how far can Mr. John go?
a) 600 miles
b) 700 miles
c) 800 miles
d) 900 miles
Answer: b) 700 miles
9. Sylvia's income from a full-time job is $520 per week. How much does Sylvia make every year?
a) $26000
b) $27000
c) $27040
d) $28983
Answer: c) $27040
10. In one night, a movie theater sells tickets for $6450. Each ticket costs $15. How many people purchased a ticket?
a) 200
b) 250
c) 320
d) 430
Answer: d) 430
