APTITUDE | ARITHMATICAL | DECIMAL FRACTION | CONVERT THE FOLLOWING INTO VULGAR FRACTIONS 2

DIRECTIONS : Convert the following into vulgar fractions.

6.	A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can be make out of this cloth?
	A.  300	B.  360
	C.  400	D.  None of these

Solution

Length of each pieces = (1 / 8) m = 0.125 m Required number of pieces(37.5/0.125) = (375×100 / 125) = 300.

7.	The expression (11.98×11.98+11.98×x +0.02×0.02) will be a perfect square for x equal to
	A.  0.02	B.  0.2
	C.  0.04	D.  0.4

Solution

Given expression =(11.98)²+(0.02)²+11.98× x. For the given expression to be a perfect square, we must have 11.98× X = 2×11.98×0.02 = 0.04

8.	12.1212+17.0005 - 9.1102 = ?
	A.  20.0015	B.  20.0105
	C.  20.0115	D.  20.1015

Solution

Given expression =(12.1212+17.0005)-9.1102 = (29.1217 - 9.1102) =20.0115.

9.	4.036 divided by 0.04 gives
	A.   1.009	B.  100.09
	C.  10.9	D.  None of these

Solution

4.036 / 0.04 = 403.6 / 4 = 100.9

10.	If 2994 ÷14.5 = 172, then 29.94 ÷ 1.45 = ?
	A.  172	B.  0.172
	C.  1.72	D.  17.2

Solution

(29.94/1.45) = 299.4/14.5 = (2994/14.5×1/10) = 172/10 = 17.2.