Find the LCM of x and (x+3).
(A) x(x+3)
(B) x2(x+3)
(C) (x+3)
(D) x
The HCF of 156, 312 and 195 is :
(A) 39
(B) 3
(C) 78
(D) 13
A hollow copper pipe is 22 cm long and its external diameter is 28 cm. If the thickness of the pipe is 3 cm and iron weighs 8.5 g/cm3 , then the weight of the pipe is closest to:
(A) 34 kg
(B) 44 kg
(C) 14 kg
(D) 24 kg
In the given figure if each of the outer circles have radii ‘R’, then the radius of the inner circle will be:
(A)
(B)
(C)
(D)
This line graph shows the scores of a batsman in 6 consecutive matches. What is the range of his scores?
(A) 53
(B) 43
(C) 41
(D) 51
The bar graph shows the number of painting sold an art gallery in each month from January to June.
How many paintings does it need to sell in July for the 7 month average to be 90?
(A) 115
(B) 85
(C) 90
(D) 110
The value of
(A) xy
(B) 1
(C) x
(D) y
If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is7/19 . What is the original fraction?
(A) 5/8
(B) 10/19
(C) 18/23
(D) 15/17
The average weight of A B and C is 40 kg . if the average weight of A and B be 48 kg and that of B and C be 45 kg , then find the weight of B ?
(A) 58
(B) 60
(C) 36
(D) 40
The average monthly income of x and y is 5050. The average monthly income of y and z is 6250 and the average monthly income of x and z is 5200. The monthly income of x is?
(A) 4050
(B) 3500
(C) 4000
(D) 5000
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