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Problems based on Numbers Test 5
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© examsnet.com
Question : 33
Total: 40
There are some boys and cows at a place. If total number of heads is 15 and the total number of legs is 46, then what is the total number of boyes and cows in that place?
8 boys and 7 cows
9 boys and 6 cows
7 boys and 8 cows
6 boys and 9 cows
Validate
Solution:
Let number of boys = x
Number of cows = 15 - x
Number of legs of boys = 2x
Number of legs of cows = 4 (15 - x)
Total number of legs = 46
2
x
+
4
(
15
−
x
)
=
46
2
x
+
60
−
4
x
=
46
−
2
x
=
46
−
60
x
=
14
2
x
=
7
Number of boys = 7
Number of cows = 8
© examsnet.com
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