Aptitude - True Discount - Discussion

Discussion Forum : True Discount - General Questions (Q.No. 14)
14.
The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annum simple interest is:
Rs. 1325
Rs. 1300
Rs. 1350
Rs. 1500
Answer: Option
Explanation:
Required sum = P.W. of Rs. 702 due 6 months + P.W. of Rs. 702 due 1 year hence
= Rs. 100 x 702 +
100 x 702
100 + (8 x 1)
100 + 8 x
= Rs. (675 + 650)
= Rs. 1325.
Discussion:
22 comments Page 1 of 3.

Sara said:   1 decade ago
Can you please tell in the second bracket why did you multiply 8x1 ?

Harshitha said:   1 decade ago
Formula for sum=P*100/(100+(T*R)

This is nothing but derivation from simple interest = (P*T*R)/100 .

Adi said:   1 decade ago
Can you please explain me the solution of above question ?

Dileep said:   1 decade ago
Since 8*(12/12)=8*1
8*(6/12)=8*(1/2)

K n chethan said:   1 decade ago
What is 100*702/(100+8*1/2)?

Rohit said:   1 decade ago
Two equal half yearly installments?

Rahul said:   1 decade ago
Shouldn't it be 1/2 both the times?

Kiranmayi paila said:   1 decade ago
First half year includes months i.e. 1/2 but second half early = 6+previous 6 months i.e. 1/2+1/2 = 1.

Pavithra said:   1 decade ago
Can you please tell the calculation of that?

Girish said:   1 decade ago
Why do we use 8 over there?


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