A. Rs. 51.25
B. Rs. 52
C. Rs. 54.25
D. Rs. 60
A. 7 years
B. 10 years
C. 15 years
D. 20 years
Explanation:
Let principal be Rs x and the rate is R % p.a.
Then X × (1 + R/100)5 = 2x
=> (1 + R/100)5 = 2
Let x × (1 + R/100)t = 8x
=> (1 + R/100)t = 8 = 23
={(1 + R/100)5 }3
=> (1 + R/100)t = (1 + R/100)15
=> T = 15 Years
A. 256
B. 432
C. 512
D. 640
A. 11m
B. 13m
C. 15m
D. 17m
A. Rs. 6400
B. Rs. 6500
C. Rs. 7200
D. Rs. 7500
Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 – x).
then , (x*14*2/100)+(13900-x)*11*2/100) =3508
28x – 22x = 350800 – (13900 x 22)
6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 – 7500) = Rs. 6400.
A. Rs. 697.50
B. Rs. 712.50
C. Rs. 787.50
D. None of these
Explanation:
Marked price is Rs. X
(7% of X) – 15 = 5% of X (Or)
7X/100 – 5X/100 = 15 or X = 750
A. 25%
B. 50%
C. 75%
D. 33%
Explanation:
(?% /100) * 120 = 90
? = 75%