A. 15
B. 26
C. 28
D. 13
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Problems on Numbers
The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is :___________?
A. 20
B. 30
C. 40
D. None of these
Find the number which when multiplied by 15 is increased by 196.
A. 14
B. 20
C. 26
D. 28
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Three numbers are in the ratio of 3 : 4 : 6 and their product is 1944. The largest of these numbers is :___________?
A. 6
B. 12
C. 18
D. None of these
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