A. 9%
B. 10%
C. 11%
D. 12%
A. 58
B. 86
C. 49
D. None of these
Let the four integers be A, B, C and D where A > B > C > D.
(A + B + C + D)/4 = 69 => A + B + C + D = 276 —> (1)
A = 93, D = 39 and B – C = 28
(1) => B + C = 276 – (A + D) = 276 – 132 = 144.
B + B -28 = 144
B = (144 + 28)/2 = 86
A. Rs. 40000
B. Rs. 36000
C. Rs. 50000
D. Rs. 45000
E. None of these
Explanation:
Let the monthly income of Ajay be Rs. x
Savings of Ajay = x – (45 + 25 + 7.5)/100 * x = 22.5/100 x
22.5/100 x = 9000
x = 40000.
A. Rs. 600
B. Rs. 700
C. Rs. 800
D. Rs. 685
Explanation:
Original price be Rs. X
C.P = (X – 25% of X) = 3X/4
S.P = (3X/4 + 10% of 3X/4) = 33X/40
33X/40 = 660
=> X = 800
A. 1350
B. 1450
C. 1550
D. 1421
Explanation:
(50 – ?/29)% of 4200 = 3√196
A. 165
B. 185
C. 205
D. 225
Explanation:
Total number of persons in the committee = 5 + 6 = 11
Number of ways of selecting group of eight persons = ¹¹C₈ = ¹¹C₃ = (11 * 10 * 9)/(3 * 2) = 165 ways.
A. 1 17/38
B. 1 38/17
C. 2 38/17
D. None of these
Explanation:
[(62.25/2.5) + (12.5/0.5)] / [(0.75 * 9) + (3.5 * 3.5)]
= [(6225/250) + (125/5)] / (6.75 + 12.25)
= (249/10 + 25) / 19 = 499/190 = 2 119/190