The sum of three numbers is 1770 . If the ratio between the first and second be 5 : 7 and that of between the second and third be 2 : 5, then find the second number.
Answer & explanation
Correct answer: option 2
I : II : III : Total
5 : 7
2 : 5
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10 : 14 : 35 : 59
59R = 1770
1R = 30
14R = 14 × 30 = 420