A. Rs.357
B. Rs.340
C. Rs.342
D. Rs.338
Explanation:
400*(90/100)*(95/100) = 342
A. 2 : 5
B. 3 : 7
C. 5 : 3
D. 7 : 3
A. 200 sq cm
B. 72 sq cm
C. 162 sq cm
D. Cannot be determined
Let the side of the square be a cm. Let the length and the breadth of the rectangle be l cm and b cm respectively.
4a = 2(l + b)
2a = l + b
l . b = 480
We cannot find ( l + b) only with the help of l . b. Therefore a cannot be found .
Area of the square cannot be found.
A. 4, 8, 12
B. 5, 10, 15
C. 10, 20, 30
D. 12, 24, 36
Explanation:
Let the required numbers be x, 2x and 3x. Then, their H.C.F = x. So, x = 12.
The numbers are 12, 24, 36.
A. 12
B. 18
C. 24
D. 32
A. 21
B. 22
C. 23
D. 24
Let the initial number of members in the group be n.
Initial total weight of all the members in the group = n(48)
From the data,
48n + 78 + 93 = 51(n + 2) => 51n – 48n = 69 => n = 23
Therefore there were 23 members in the group initially.
A. 700 gms
B. 750 gms
C. 800 gms
D. 850 gms
Explanation:
25 = E/(1000 – E) * 100
1000 – E = 4E
1000 = 5E => E = 200
1000 – 200 = 800