If x=1/y and y=1/z, then
A)
x=1/z
B)
x=1/z²
C)
x=z
D)
None of the above
Correct Option - C
Explanation
x=1/y
x=1/(1/z) = z
A box contains 140 ice-creams, 30% of which are strawberry, two-sevenths are chocolate, 5% are mango and the rest are vanilla. How many ice-creams are vanilla flavoured?
A)
14
B)
49
C)
35
D)
51
Correct Option - D
Explanation
No. of strawberry ice-creams
= 30% of 140
= 42
No. of chocolate ice-creams
= (2/7)*140
= 40
No. of mango ice-creams
= 5% of 140
= 7
No. of vanilla
= 140-(42+40+7)
= 51
Find the decimal value of 30% of 20% of (7/12).
A)
0.7
B)
0.07
C)
0.035
D)
0.35
Correct Option - C
Explanation
(30/100)*(20/100)*(7/12)
= 7/200
= 0.035
What fraction of a number is two-sevenths of two and a half times the number?
A)
5/7
B)
4/7
C)
7/4
D)
7/5
Correct Option - A
Explanation
Let the number be x.
2½ x = (5/2)x
(2/7)*(5/2)x
= 5/7 x
Convert 2% of (0.01) into a fraction.
A)
2
B)
2/100
C)
2/1000
D)
2/10000
Correct Option - D
Explanation
2% of 0.01
= (2/100)*(0.01)
= (2/100)*(1/100)
= 2/10000
Priya and Riya baked cookies. Priya ate half of it and Riya ate one-third of it. They gave the rest to Heena. What fraction of the cookies did Heena get?
A)
1/6
B)
1/5
C)
1/4
D)
2/3
Correct Option - A
Explanation
Let x be the fraction of the cookies Heena got.
(1/2)+(1/3)+x=1
(5/6)+x = 1
x = 1-(5/6)
x = 1/6
If x=2 and y=3, find the value of
A)
35/6
B)
6
C)
05/02/2015
D)
07/02/2015
Correct Option - A
Explanation
x+(1/x)+(1/y)+y
= 2+(1/2)+3+(1/3)
= 35/6