Rachna can eat 21 oranges in 60 minutes. She wants to know how many minutes it would take her to eat 35 oranges at the same pace?

Correct option is D

Given:

Rachana eats 21 oranges in 60 minuts.

It will take her to eat 35 oranges at same pace.

Solution:

The rate at which Rachana eats oranges is constant, So :

​$$\frac{Orange\ eaten}{Time\ taken}$$ = $$\frac{21}{60}$$ = $$\frac{35}{x}$$ 

Now,

21 × $$x$$ = 35 × 60

21$$x$$ = 2100

$$x$$ = $$\frac{2100}{21}$$ = 100 minute

Thus, the correct answer is (D)