Maths Questions for DSSSB Exam : 7 July 2018 (Solutions)_00.1
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Maths Questions for DSSSB Exam : 7 July 2018 (Solutions)

Maths Questions for DSSSB Exam : 7 July 2018 (Solutions)_40.1
Dear Students!!! There is most general as well as a scoring section in all the competitive entrance examinations in the teaching field i.e “Mathematics”.Because in this section only one thing is work i.e your accuracy and that could be nourished with the daily practice. So, for this, we are providing you the daily quiz for all teaching exams i.e CTET Exam 2018, DSSSB Exam & STET Exam.
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Q2. Sum and difference of two numbers are 25 and 15 respectively. The greater number is
(a) 10
(b) 15
(c) 20
(d) 25
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Q4. The digit in unit’s place of the product 81 × 82 × 83 × ……… × 89 is
(a) 0
(b) 2
(c) 6
(d) 8
Q5. Find the unit digit in the product 268 × 732.
(a) 0
(b) 6
(c) 2
(d) 3
Q6. Find the unit digit in the product of (268 × 539 × 826 × 102).
(a) 2
(b) 3
(c) 4
(d) 5
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Solutions
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S2. Ans.(c)
Sol. Let two numbers are x and y respectively.
Now, according to the question,
x + y = 25 …(i)
and x – y = 15 …(ii)
Solving Equation (i) and (ii), we get
x = 20
and y = 5
∴ Greater number = x = 20
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S4. Ans.(a)
Sol. The digit in unit’s place = Unit digit in the product 
1 × 2 × 3 × …… × 9 = 0
S5. Ans.(b)
Sol. Unit digit in 268 × 732
= Unit digit in 8 × 2
= Unit digit in 16 = 6
S6. Ans.(c)
Sol. Unit digit in 268 × 539 × 826 × 102
= Unit digit in 8 × 9 × 6 × 2
= Unit digit in 72 × 12
= Unit digit in 2 × 2 = 4
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