A. 28
B. 32
C. 40
D. 64
A. 1 year
B. 2 years
C. 3 years
D. 4 years
28 * 2 = 56
20 * 3 = 60
4 years
A. If a < b
B. If a ≤ b
C. If the relationship between a and b cannot be established
D. If a > b
Explanation:
I. (a + 6)(a + 5) = 0
=> a = -6, -5
II. (b + 5)(b + 1) = 0
=> b = -5, -1 => a ≤ b
A. 22
B. 32
C. 11
D. 19
A. 0
B. 1
C. 10
D. 19
Average of 20 numbers = 0
Sum of 20 numbers = (0 * 20) = 0
It is quite possible that 19 of these numbers may be positive and if their sum is a, then 20th number is (-a).
A. Rs. 135
B. Rs. 162
C. Rs. 189
D. Rs. 198
E. None of these
Explanation:
CP per kg of mixture = [24(150) + 36(125)]/(24 + 36) = Rs. 135
SP = CP[(100 + profit%)/100]
= 135 * [(100 + 40)/100] = Rs. 189.
A. 11%
B. 10%
C. 11 1/9 %
D. 9 1/11 %
100 – 10 = 90
90——10
100——? => 11 1/9%