SSC CGL TIER I MATH ANSWER KEY 26/06/11 EVENING SHIFT

1 Marbles of diameter 1.4 cm Ans B
150
Q2 Water is flowing at the rate of
3km/h…. Ans B 1 hr 40 mins
Q3 A bicycle wheel makes 5000
revolution Ans 70
Q4 At each corner of a triangular
field of sides 26 m, 28 m and 30 m,
Ans 259
Q5 A shopkeeper allows 23%
commission Ans 800
Q 6 Thesingle discount equal to three
consecutive Ans 24.76%
Q 7 If S : Y = 5 : 6 Ans 3 : 11
Q8 An alloy contains copper, zinc
Ans 10
Q9 The ratio of the ages of Ram and
Rahim Ans 3 :5
Q 10 Theincomes of A, B and C are in
the Ans 56 :99 :69
Q11 Out of 4 numbers, whose
average is 60 Ans 48
Q 12The average of 25 observation is
13 Ans 14
Q 13If the cost price of 10 articles is
equal to Ans 25%
Q14 An article is marked 40% above
the cost price Ans 2 % loss
Q15 A man bought oranges at the
rate of 8 for Rs 34 Ans 90
Q16 A man sells two articles for Rs
5000 each Ans 16 2/3%
Q 17 By selling an article for Rs 144, a
person gained Ans Rs. 80
Q 18 The average age of 11 players of
acricket team is increased by 2 Ans
19 Years 11 months
Q19 A reduction of 20% in the price
of an apple Ans Rs. 12.96
Q20 Price of a commodity has
increased by 60% Ans 37.5%
Q21 The cost of an apple is twice
that of a banana Ans 10%
Q 22 Walking 6/7th of his usual speed,
aman is 12 minutes too late Ans 1
hour 12 Min
Q23 If I walk at 5 km/hour, I miss a
train by 7 minutes Ans 6
Q24 Rs 800 becomes Rs 956 in 3
years at a certain rate of simple
interest Ans Rs. 1052
Q25 Simple interest on a certain sum
is 16/25 Ans 8 %
Q26 If the difference between S.I.
and C.I for 2 years Ans Rs. 2400
Q 27A hemisphere and a cone have a
equal bases Ans Root 2 : 1
Q 28If X = Rooot(root 5 + 1)/ (root
5 – 1) Ans 4
Q 29When (2)33 is divided by 10, the
remainder will be Ans 2
Q 30 The value of 3 + 3/3 Ans 43/11
Q 31Find the unit digit in the product
(4837)245 X(621) 72 Ans 7
Q 32 If root 2 = 1.4142 find the value
of Ans 2.8284
Q 33 If X * Y = (X)2 + (Y)2 – XY then
11 * 13 is Ans 147
Q 34 The value of (3.2)3 – 0.008/
(3.2)2+0.64 +0.04 Ans 3
Q 35 If (a) 1/3 = 11, then the value of
(a)2 – 331a is Ans 1331000
Q 36 If root 1 + x/961 = 32/31 then
the value of X is Ans 64
Q 37 If a an b are odd numbers, then
which of the following is even
Ans a + b + 2ab
Q 38 (2)16 -1 isdivisible by Ans 17
Q 39 The HCF and LCM of two
numbers are 12 and 924 Ans 2
Q 40 What is the least number which,
when divided by 5, 6, 7, 8 Ans 1683
Q 41 Three numbers are in the ratio
3 : 4 : 5. thesum of the largest Ans 39
Q 42 If the radius of a circle is
increased by 50% Ans 125 %
Q 43 A and B working separately can
doa piece of work in 9 and 12 days
Ans 10 1/4 days
Q 44 A and B together can do a work
in 10 days B AND C And 5 5/7 days
Q 45 A does half as much work as B
in three fourth time Ans 40 day
Q 46 If a wire is bent into the shape
of square, then the area Ans 77