A. 4.92
B. 3.77
C. 3.01
D. 4.14
Explanation:
1/3 * 1/3 * 1/7 * 1/9 * 2140 = ?
? = 3.77
A. Rs. 20
B. Rs. 21.81
C. Rs. 22
D. Rs. 18.33
A. 22
B. 24
C. 30
D. 28
Explanation:
? = 844 – 7 2/5 of 110 = 844 – 37 * 22 = 30
A. 16 toffees
B. 20 toffees
C. 25 toffees
D. 24 toffees
Explanation:
He sells 20 toffees
S.P = Rs. 1 and loss = 4%
C.P = (11/96 × 1) = Rs. 25/24
Gain = 20%
S.P = Rs. (120/100 × 25/24) = Rs. 5/4
Rs. 5/4 toffees sold = 20
Rs. 1 toffees sold = (20 × 4/5) = 16
A. Rs.2520
B. Rs.3120
C. Rs.3320
D. Rs.2760
E. None of these
Explanation:
Let A be the amount received at the end of the three years.
A = 4800[1 + 10/100][1 + 20/100][1 + 25/100]
A = (4800 * 11 * 6 * 5)/(10 * 5 * 4)
A = Rs.7920
So the interest = 7920 – 4800 = Rs.3120
A. 2times
B. 3times
C. 1/3 times
D. 9times
A. -2, -1/2
B. 4, -1
C. 4, 1
D. -2, 5/2
Explanation:
2×2 + 4x + x + 2 = 0
2x(x + 2) + 1(x + 2) = 0
(x + 2)(2x + 1) = 0 => x = -2, -1/2