Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes?
Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes?
A. 1:64
B. 1:8
C. 1:4
D. 8:1
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In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?
In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?A. 4/11
B. 1
C. 2/33
D. 19/66Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is?
Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is?A. 60 gallons
B. 100 gallons
C. 120 gallons
D. 180 gallons
Explanation:
Work done by the waste pipe in 1 minute = 1/15 – (1/20 + 1/24) = – 1/40
Volume of 1/40 part = 3 gallons
Volume of whole = 3 * 40 = 120 gallons.The wire bent in the form of a square enclose an area of 484 Sq.cm. If the same wire is bent so as to from a circle than the area enclosed will be_________?
The wire bent in the form of a square enclose an area of 484 Sq.cm. If the same wire is bent so as to from a circle than the area enclosed will be_________?A. 484Sq.cm
B. 538 2/7 Sq.cm
C. 616 Sq.cm
D. 644 Sq.cmWhat is the area of a square field whose diagonal of length 20 m?
What is the area of a square field whose diagonal of length 20 m?A. 300 sq m
B. 250 sq m
C. 200 sq m
D. 400 sq mI. a3 – 988 = 343, II. b2 – 72 = 49 to solve both the equations to find the values of a and b?
I. a3 – 988 = 343,
II. b2 – 72 = 49 to solve both the equations to find the values of a and b?A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b
Explanation:
a3 = 1331 => a = 11
b2 = 121 => b = ± 11
a ≥ bThe difference between the simple interest and the compound interest on Rs 5000 at 10% P.a for 3 years is:_______?
The difference between the simple interest and the compound interest on Rs 5000 at 10% P.a for 3 years is:_______?A. Rs 145
B. Rs 150
C. Rs 165
D. Rs 180
E. None of these