Question

varun take certain number of rotis during lunch but always waste half roti roasa take half the number of roti is as varun and alw ays finish her share after twenty days if the number of roti that were consumed were during lunch by them together is 120 (excluding the rotis wasted ) than find out the number of rotis per meal that varun and rosa take how many rotis were waste in 20 days note the number of rotis wasted would have fed rosa lunch for 12 days

Answer 1

Every day Varun waste's 1/2 roti ,

So in 20 days he will waste 20 * 1/2 = 10 rotis .

As they have consumed 110 rotis in 20 days , they have taken 110 + 10 = 120 rotis. (10 are wasted).

Let Rosa eat x rotis and Varun eat 2x rotis .

So x + 2x = 120

⇒ 3x = 120

⇒ x = 120/3

⇒ x = 40

So Varun eat's 80 rotis (2x) and Rosa eat's 40 rotis (x).

Therefore, Varun eat's 80/20 = 4 rotis per day and Rosa eat 40/20 = 2 rotis per day.