The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?
The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?
A. 1:2
B. 1:4
C. 1:8
D. 2:1
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How many paying stones, each measuring 2 1/2 m * 2 m are required to pave a rectangular court yard 30 m long and 16 1/2 m board?
How many paying stones, each measuring 2 1/2 m * 2 m are required to pave a rectangular court yard 30 m long and 16 1/2 m board?A. 99
B. 90
C. 95
D. 100If the selling price of 50 articles is equal to the cost price of 40 articles, then the loss or gain percent is:
If the selling price of 50 articles is equal to the cost price of 40 articles, then the loss or gain percent is:A. 20% loss
B. 20% gain
C. 25% loss
D. 25% gain
Explanation:
Let C.P. of each article be Re. 1.
Then, C.P. of 50 articles = Rs. 50;
S.P. of 50 articles = Rs. 40.
Loss % = 10/50 * 100 = 20%A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?
A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?A. 2 kmph
B. 8 kmph
C. 16 kmph
D. 4 kmph
Explanation:
30 — 3 DS = 10
? —- 1
18 —- 3 US = 6
? —- 1 M = ?
M = (10 + 6)/2 = 8A merchant sold his goods for Rs. 75 at a profit percent equal to C.P. The C.P was:________?
A merchant sold his goods for Rs. 75 at a profit percent equal to C.P. The C.P was:________?A. Rs. 40
B. Rs. 50
C. Rs. 60
D. Rs. 70
Explanation:
Let C.P = Rs. X
X + X% of X = 75
X2 + 100 X – 7500 = 0 Or (X+ 150) (X – 50) = 0
X = 50 (neglecting X= – 150)The edge of a cube is 2a cm. Find its surface?
The edge of a cube is 2a cm. Find its surface?A. 6a2 cm2
B. 8a2 cm2
C. 12a2 cm2
D. 24a2 cm2
Explanation:
6a2 = 6 * 2a * 2a = 24a2The altitude of an equilateral triangle of side 2√3 cm is_________?
The altitude of an equilateral triangle of side 2√3 cm is_________?A. 3/2 cm
B. 1/2 cm
C. 3/4 cm
D. 3 cm