Varun takes a certain number of rotis during lunch, but always wastes half a roti. Rosa takes half thenumber of rotis as Varun, and always finishes her share. After 20 days, if the number of rotis that wereconsumed during lunch by them together is 120 (excluding the rotis wasted), then find the number ofrotis per meal that Varun and Rosa take. How many rotis were wasted in 20 days?Note: The number of rotis wasted, would have fed Rosa lunch for 12 days! Avoid wasting food and share your food withothers

Varun takes a certain number of rotis during lunch, but always wastes

1.	Varun takes a certain number of rotis during lunch, but always wastes half a roti. Rosa takes half thenumber of rotis as Varun, and always finishes her share. After 20 days, if the number of rotis that wereconsumed during lunch by them together is 120 (excluding the rotis wasted), then find the number ofrotis per meal that Varun and Rosa take. How many rotis were wasted in 20 days?Note: The number of rotis wasted, would have fed Rosa lunch for 12 days! Avoid wasting food and share your food withothers
Answer» 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 = 40So Varun eat's 80 rotis(2x) and Rosa eat's 40 rotis (x).Therefore, Varun eat's 80/20 = 4 rotis per dayand Rosa eat 40/20 = 2 rotis per day.