Question

Varun Takes a certain number of rotis during lunch but always wastes half a roti. Rosa takes half the number of rotis as Varun and always finishes has share, after 20 days if the number of rotis that were consumed during lunch by them together are 120 (excluding the rotis wasted) then find the number of rotis per meal that varun and Rosa take.how many rotis were wasted in 20 days?

Answer 1

let varun tales x rotis in a day
let Rosa takes x/2 rotis ina day
varun wastes x/2 rotis in a day
varun eats x-x/2 rotis in a day
in 20 days varun will take 20×x/2=10x rotis
in 20 days Rosa will take 20× x/2 = 10x rotis
10x+10x=120
20x=120
x=6
varun takes 6 rotis per meal so
Rosa takes 3 rotis per meal
and varun wasted 6/2×20=60 rotis

Answer 2

Answer:

Step-by-step explanation:

Varun has = x rotis

Rosa has = x/2 rotis

20 * x + x/2 = 120

20x + 10x = 120

30x = 120

x = 120/30 = 4

So Varun takes 4 rotis but he wastes 1/2 of a roti

So varun eats 4 - 1/2 or 3 1/2 or 3.5 rotis

Rosa eats half of what Varun takes which is equal to 4/2 or 2 rotis

So the answers are - Varun eats 3.5 (3 1/2)  rotis and Rosa eats 2 rotis.  and 10 rotis are wasted in 20 days because Varun wastes half roti everyday so in 20 days he wastes 20 * 1/2 which is equal to 10.