Aptitude - Ratio and Proportion - Discussion

Discussion Forum : Ratio and Proportion - General Questions (Q.No. 1)
1.
A and B together have Rs. 1210. If of A's amount is equal to of B's amount, how much amount does B have?
Rs. 460
Rs. 484
Rs. 550
Rs. 664
Answer: Option
Explanation:

4 A = 2 B
15 5

A = 2 x 15 B
5 4

A = 3 B
2

A = 3
B 2

A : B = 3 : 2.

B's share = Rs. 1210 x 2 = Rs. 484.
5

Discussion:
161 comments Page 7 of 17.

PRAKASH said:   1 decade ago
B'S =2/5
A's =3/5
so how A IS EQUAL TO B(A=B)

Ramesh said:   1 decade ago
Nice one more method
1210 is total of 2 members

Assume b is x
therefore is A is 1210-x
so 4/15*(1210-x)=2/5*x
4(1210-x)=6x
10x=4840
x=484

Prasanna said:   1 decade ago
Thanks sridhar...

Thilagavathi said:   1 decade ago
Superb sridhar.

Thejaswi said:   1 decade ago
A+B=1210
(4/15)A=(2/15)B
A=(15/4)(2/5)B
A/B=3/2
Take it as A/3=B/2
Adding denominators 5P.
So,5P=1210
P=242
B's Amount is 2P i.e,2(242)=484

Deepthi palreddy said:   1 decade ago
Thank you sreedhar.

Pradeep said:   1 decade ago
Can anyone please explain, how u can find out the ration of A & B because in question they only tell that if of A's amount is equal to of B's amount. and also explain meaning of this line and how u can find that (4/15)A=(2/15)B .

Sakshi said:   1 decade ago
What is the significance of finding ratio here. As B's share is calculated directly further in answer. Please explain.

Brajesh said:   1 decade ago
Through ratio share can be divided accordingly as A:B=3:2 B' SHARE will be 2/5*1210=484.

Ramana said:   1 decade ago
A:B=3:2
SO, B only share equal to 2/5*1210=2*242=484.


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