Question

Choose the correct question for a mathematical statement and justify it.
Statement: 5 × 20 = 100, which means 5 multiplied 20 times, gives the product as 100.
Which option states the same?

• A. None of the above
• B. If each box has 5 bulbs, how many bulbs are there in 20 such boxes?
• C. If there are 100 chairs, how many chairs can be carried out by 5 people in 20 minutes?
• D. If 5 friends join a party of 20 people, how long will it take to cover a distance of 100 m?

Answer 1

The correct option is B If each box has 5 bulbs, how many bulbs are there in 20 such boxes?

a. In this option, we can see that if we multiply the number of people with time, we can not get the number of chairs. 5 × 20 = 100 is not justified.

b. In this option we are doing the multiplication of 5 friends with 20 people in the party. This is not justified as this does not give the time taken to cover the distance.

c. In this option, to get the total number of bulbs in 20 boxes, 5 × 20 = 100 is justified as each box contains 5 bulbs.