381.
What is the value of the following expression?
(A)
(B)
(C)
(D)
382.
Two cubes have their volumes in the ratio 1 : 125. Find the ratio of their surface areas.
(A)
1 : 125
(B)
1 : 25
(C)
25 : 1
(D)
1 : 5
383.
△XYZ is similar to △PQR. If the ratio of the perimeter of △XYZ to the perimeter of △PQR is 16 : 9 and PQ = 3.6 cm, then
what is the length (in cm) of XY?
(A)
(B)
(C)
(D)
384.
The total income of three families is ₹72,000. Their expenditures are 80%, 85% and 75%, respectively. If the savings are in
the ratio 8 : 9 : 20, then the income of the second family is:
(A)
₹32,000
(B)
₹16,000
(C)
₹40,000
(D)
₹24,000
385.
A closed cylindrical tank of radius 1.5 m and height 3 m is made from a sheet of metal, how much sheet of metal is required
to do it?
(A)
42.24 square metre
(B)
24.42 square metre
(C)
42.42 square metre
(D)
24.24 square metre
386.
If a sum of ₹3,260 on simple interest amounts to ₹5,420 in 6 years, then what will this sum amount to in 4 years at the same
rate of interest?
(A)
₹4,700
(B)
₹3,700
(C)
₹3,900
(D)
₹4,500
387.
How many cubes of edge 15 cm can be put in a cubical box of 3 m edge?
(A)
9000
(B)
1050
(C)
8000
(D)
2000
388.
Simply the following expression.
(A)
7
(B)
13
(C)
11
(D)
9
389.
If the intersection point of the equations 3p − 2q + 23 = 0 and −2p + q − 13 = 0 on the graph is (p, q), then the value of (3p + q)
is equal to:
(A)
2
(B)
1
(C)
−2
(D)
−1
390.
If the areas of three adjacent faces of a cuboid are 5 cm2, 15 cm2, 27 cm2, respectively, the surface area of the cuboid is:
