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10 Mar 2026, 19:00
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The ratio of the number of red, blue, green, and white balls in a box is 2 : 3 : 5 : 10. If the number of one particular colored ball in the box is 40, which of the following cannot be the number of total balls in the box?
A. 80
B. 160
C. 200
D. 400
E. None of these
A. 80
B. 160
C. 200
D. 400
E. None of these
10 Mar 2026, 23:00
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let balls be 2x, 3x, 5x, 10x. Total balls will be 20x.
2x=40 , x=20, Total=400
3x=40, x = not integer, not possible.
5x=40, x=8, Total=160
10x=40, x=4, Total=80.
From options. 200 is not possible.
2x=40 , x=20, Total=400
3x=40, x = not integer, not possible.
5x=40, x=8, Total=160
10x=40, x=4, Total=80.
From options. 200 is not possible.
10 Mar 2026, 23:26
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Total is a multiple of 20 as we see it.
80 is possible its a multiple of 10.
160 also possible (quickly divide 10 by 2 and we have 5)
200 -> this is 80*1.5 so on dividing 10 by 1.5 or 10*2/3 it doesnt even give us an integer value. So not possible
400 -> This is simply 80*5 and on dividing 10 by 5 we have 2 in the ratios. Possible
Answer: Option C
80 is possible its a multiple of 10.
160 also possible (quickly divide 10 by 2 and we have 5)
200 -> this is 80*1.5 so on dividing 10 by 1.5 or 10*2/3 it doesnt even give us an integer value. So not possible
400 -> This is simply 80*5 and on dividing 10 by 5 we have 2 in the ratios. Possible
Answer: Option C
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