A. 1:2
B. 2:1
C. 1:4
D. 4:1
A. 450
B. 500
C. 550
D. 600
C.P. of each = Rs. (25 + 2% of 25) = Rs. 25.50.
So Number of s = 12750/25.50 = 500.
A. 5%
B. 6%
C. 10%
D. 15%
Explanation:
P = Rs 20000, A =Rs 24200,
t = 2 years 20000 × (1 + R/100)2 = 24200
=> (1 + R/100)2 = 24200/20000 = 121/100 = (11/10) 2
=> 1 + R/100 = 11/10
=> R/100 = (11/10 – 1) = 1/10
=> R = (100 × 1/10) % p.a = 10 % p.a
Hence, Rate = 10 % p.a
A. 4%
B. 5%
C. 6%
D. 8%
Explanation:
SI = 20 + 20
CI = 20 + 21
20 —- 1
100 —- ? => 5%
A. 600
B. 620
C. 500
D. 520
E. None of these
Explanation:
Let the number of children in the school be x. Since each child gets 2 bananas, total number of bananas = 2x.
2x/(x – 360) = 2 + 2(extra)
=> 2x – 720 = x => x = 720.
A. 8 : 9
B. 17 : 18
C. 21 : 22
D. Cannot be determined
Originally, let the number of boys and girls in the college be 7x and 8x respectively. Their increased number is (120% of 7x) and (110% of 8x), i . e . ( 120/100 X 7x ) and ( 110/100 X 8x ) i . e . 42x/5 and 44x/5 Required ratio = 42x/5 : 44x/5 = 21 : 22
A. Rs.480
B. Rs.615
C. Rs.820
D. Rs.740