Whole Numbers Test

Result

Whole Numbers Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

Simon bought 167 packets of crisps on Monday and 98 packets of crisps on Tuesday. Each packet cost Rs. 18. How much money did he pay to the shopkeeper?

A
Rs. 4,707

B
Rs. 4,770

C
Rs. 4,077

D
Rs. 4,777

Solution

Number of packets bought on Monday = 167
Number of packets bought on Tuesday = 98
Cost of each packet = Rs. 18
Total packets = 167 + 98 = 265
Cost of 265 packets = 265 × 18 = Rs. 4,770
Question 2
1 / -0

Aman and Param went to Kasauli for a month. Aman bought 145 bottles of water in the first week and 187 bottles in the second week. Then, Param bought 254 bottles in the third week and 67 bottles in the fourth week. How many bottles did they buy in total?

A
563

B
653

C
635

D
569

Solution

Number of bottles bought by Aman in the first week = 145
Number of bottles bought in the second week = 187
Number of bottles bought by Param in the third week = 254
Number of bottles bought in the fourth week = 67
Total number of bottles = 145 + 187 + 254 + 67 = 653
Question 3
1 / -0

78 keyboards can be packed in a single wooden carton. If there are 35,568 keyboards, then how many wooden cartons are needed to pack all the keyboards?

A
436 cartons

B
456 cartons

C
465 cartons

D
546 cartons

Solution

Number of keyboards that can be packed in 1 carton = 78

Number of cartons needed to pack 35,568 keyboards = 35568/78 = 456 cartons
Question 4
1 / -0

There are 512 ball bearings in a container. A worker replaced 8 ball bearings with 16 cranks. He continued the same process, until all the ball bearings were replaced by cranks. How many cranks did he put in the container?

A
1,204 cranks

B
1,024 cranks

C
924 cranks

D
947 cranks

Solution

Let n be the number of steps.
Then, 512 - 8 × n = 0
8n = 512
n = 64

Now, number of cranks added = 16
Therefore, total number of cranks added = 16 × 64 = 1,024 cranks
Hence, option (2) is correct.

Alternate Solution:
There are 512 ball bearings in a container and every time 8 ball bearings are replaced by 16 cranks.
This means every ball bearing is replaced by 2 cranks.
Therefore, number cranks added = 512 × 2 = 1024.
Question 5
1 / -0

Prahlad had Rs. 11,20,000 in the beginning. He gave Rs. 2,75,000 to Keshav and bought a second hand car from his colleague Daya for Rs. 4,26,000. Then, he bought a puppy from his friend Abhishek for Rs. 34,600. How much money is left with him now?

A
Rs. 3,88,400

B
Rs. 3,84,400

C
Rs. 3,48,400

D
Rs. 3,84,800

Solution

Total money Prahlad had in the beginning = Rs. 11,20,000
Amount given to Keshav = Rs. 2,75,000

Cost of car = Rs. 4,26,000
Cost of puppy = Rs. 34,600

Total amount spent = 2,75,000 + 4,26,000 + 34,600 = Rs. 7,35,600
Amount left with him = 11,20,000 - 7,35,600 = Rs. 3,84,400
Question 6
1 / -0

Study the following statements.

Statement 1: Subtraction and division are not associative for whole numbers.
Statement 2: Multiplication of whole numbers is distributive over subtraction.

Which of the following options hold?

A
Both statements are true.

B
Statement 1 is true, but statement 2 is false

C
Statement 1 is false, but statement 2 is true

D
Both statements are false.

Solution

Statement (1) that says that subtraction and division are not associative for whole numbers, is true. Statement (2) that says that multiplication of whole numbers is distributive over subtraction, is false.