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jitendra

· started a discussion

· 1 Months ago

why multiplied by 2 3 and 6 (Question: 361336.0 )

please explain

Question:

Two types of alloy possess gold and silver in the ratio of 7 : 22 and 21 : 37. In what ratio should these alloys be mixed so as to have a new alloy in which gold and silver would exist in the ratio 25 : 62?

Options:
A)

13 : 8

B)

8 : 13

C)

13 : 12

D)

6 : 9

Solution:

Ans: (a)


Anindya Vikram Singh

· commented

· 1 Months ago

lcm of total in each case is taken to multiply

ANUJ DIXIT

· commented

· 1 Months ago

take only gold ratio in consideration.
gold(a) gold(b)
7/(7+22) 21/(21+37)

25/(25+62)

13 8
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