1.  There are n boxes and m fruits. If we put 3 fruits in each box 3 fruits will be excess. If we put 4 fruits in each box 1 box will be excess. Find number of boxes and fruits ?
A. 3 & 9
B. 6 & 19
C. 7 & 24
D. 5 & 18

Answer: Option C

Explanation:

7 boxes & 24 Balls.

Let, n = No. of boxes ; m = No. of fruits

3n+3 = m---------->(1)

4(n-1)= m---------->(2)

=>4n-4 = 3n+3;

=>4n-3n = 4+3

n = 7

Put n=7 in eqn(1)

=> 3(7)+3 = m

21+3 = m

m = 24;

Number of boxes = 7 and fruits = 24