Question

1. John and Carolyn are planning a picnic for some of their friends. In all there will be 28 people. They plan to barbecue steaks for the meal. The recommended weight of a steak for one person is 3⁄4 pound. How many pounds of steak will they need for the picnic?
2. Most people know that one quarter of an hour is 15 minutes. Perform the appropriate calculation to prove that this is true.

Answer 1

1. 28 x 3/4 = 21 kg

2. 1 hr = 60 mins

=》 1/4 hr = 60/4 = 15mins

Answer 2

Answer:

1. Total number of people = 8

Steak required for 1 person is = $\frac{3}{4}$ pounds

So, steak required for 28 persons will be : $\frac{3}{4} \times28$

= 21 pounds

2. Most people know that one quarter of an hour is 15 minutes.

One quarter is written as : $\frac{1}{4}$ or 0.25

And 1 hour has 60 minutes.

So, one quarter has = $\frac{1}{4} \times60$ = 15 minutes

or $0.25\times60=15$ minutes