Chintu works at a soft drink company and was arranging some particular number of cylindrical alumini

M4maths Previous Puzzles

15 Oct 2020 Number of Cans

Chintu works at a soft drink company and was arranging some particular number of cylindrical aluminium soft drink cans in a square box but the box became full and there were 14 cans remaining to be put in. Then, he started arranging all Cans in a rectangular box where he could arrange 8 cans more along the length than the breadth after putting all the cans in the rectangular box. He found out that there was still space left for another 9 cans. What is the number of cans Chintu had if it is known that the number of cans were more than 10 and no can was put on top of another can?

OPtion

1) 44
2) 25
3) 16
4) 39
5) 36
6) 33
7) 45
8) 40
9) 43
10) None of these

Solution

In a square box the number of cans arranged along the length and breadth would be same.
In case of rectangular box, lets assume that number of cans along breadth is x then number of boxes along the length would be x+6
Total number of cans the rectangular box can take = x*(x+8)
Total number of cans Chintu was able to put in the rectangular box (as some empty space was remaining ) = x*(x+8) - 9 --- (i)


Given that the number of cans are more than 10, hence 2 & 3 cans along the length are ruled out

Lets try with 4 cans along length of square box, total cans in box would be 16
Total number of cans which Chintu has = 16+14 = 30 ---- (ii)
(i = (ii)
x*(x+8) - 9 = 30
=> x^2 + 8x = 39
Trying to solve we realize that there is no such whole number which x can take

Lets try with 5 cans along length of square box, total cans in box would be 25
Total number of cans which Chintu has = 25+14 = 39 ---- (ii)
(i = (ii)
x*(x+8) - 9 = 39
=> x^2 + 8x = 48
Solving we get x = 4

So total number of cans which Chintu had = x*(x+8) - 9 = 4(4+8) - 9 = 39

Correct Option: 4 Best Solution (1)

G.S.Kantharao   4 years AGO

39

Like? Yes (1) | No