A. 15%
B. 12%
C. 17 11/17%
D. 20 %
Explanation:
Discount = (12/80 × 100)% = 15%
A. 5 : 3 : 1
B. 5 : 3 : 2
C. 10 : 7 : 4
D. 10 : 8 : 5
E. None of these
Explanation:
Let the prices of X, Y and Z be 8k, 5k and 3k respectively.
After increase
Price of X = 8k * 125/100 = 10k
Price of Y = 5k * 120/100 = 6k
Price of Z = 3k * (133 1/3)/100 = 4k
Required ratio = 10k : 6k : 4k = 5 : 3 : 2.
A. 125
B. 525
C. 25/64
D. 625
Explanation:
(25 * 25)/25 + 15 * 40 = 25 + 600 = 625.
A. 78
B. 76
C. 74
D. 72
Explanation:
45/100 * 125 + 22.22 = 56.25 + 22.22 = 78.47
A. 150
B. 200
C. 250
D. 300
Explanation:
The number of ways to select two men and three women = ⁵C₂ * ⁶C₃
= (5 *4 )/(2 * 1) * (6 * 5 * 4)/(3 * 2)
= 200
A. 4/3 cm
B. 3/4 cm
C. 3 cm
D. 4 cm
A. 6cm
B. 3.2 cm
C. 3 cm
D. 3.5 cm