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Very important Maths Questions for SSC CGL Exams. You can easily score extra with the help of Maths Questions for SSC CGL Exams.
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1. The product of 2 numbers is 1575 and their quotient is 9/7. Then the sum of the numbers is –
a. 74
b. 78
c. 80
d. 90
We know xy = 1575
And x/y = 9/7
We know xy/x/y = 1575/9/7
We know y2 = 1225
We know y = 35 and x = 45
We know The sum of the numbers = 45+35
= 80
2. The value of (81)3.6 * (9)2.7/ (81)4.2 * (3) is __
a. 3
b. 6
c. 9
d. 8.2
= 314.4+5.4-16.8-1
= 32
= 9
3. √6+√6+√6+… is equal to –
a. 2
b. 5
c. 4
d. 3
4. The sum of the squares of two natural consecutive odd numbers is 394. The sum of the numbers is –
a. 24
b. 32
c. 40
d. 28
We know that x2 + (x + 2)2 = 394
We know x2 + x2 + 4x + 4 = 394
We know 2 x2 +4x – 390 = 0
We know x2 + 2x – 195 = 0
We know (x +15) (x-13) = 0
We know x = 13
We know Required sum = 13 +15 =28
5. When (6767 +67) is divided by 68, the remainder is-
a. 1
b. 63
c. 66
d. 67
As 66 is an even number
We know 6766 is an even number
We know (6766 + 1) is perfectly divisible by (67 + 1)
i.e. 68
We know The remainder = 66
6. In a division sum, the divisor is 4 times the quotient and twice the remainder. If a and b are respectively the divisor and the dividend then-
a. 4b-a2 /a =3
b. 4b-2a /a2 =2
c. (a+1)2 = 4b
d. A(a+2)/b = 4
We know Quotient = a/4
And Remainder = a/2
We know b = a * a/4 + a/2
We know 4b = a2 + 2a
We know a(a+2)/b = 4
7. If 738 A6A is divisible by 11, then the value of A is-
a. 6
b. 3
c. 9
d. 1
We know A + A + 3 = 6 + 8 + 7
We know A = 9
8. The east positive integer that should be subtracted from 3011 * 3012 so that the difference is perfect square is-
a. 3009
b. 3010
c. 3011
d. 3012
= (3011)2 + 3011
We know Required least number = 3011
9. P, Q, R are employed to do a work for Rs. 5750. P and Q together finished 19/23 of work and Q and R together finished 8/23 of work. Wage of Q, in rupees, is-
a. 2850
b. 3750
c. 2750
d. 1000
4/23
We know Wage of Q = 4/23 * 5750
= Rs. 1000
10. A can do a piece of work in 24 day, B in 32 days and C in 64 days. All begin to do it together, but A leaves after 6 days and B leaves 6 days before the completion of the work. How many days did the work last?
a. 15
b. 20
c. 18
d. 30
Work done by B = (x-6)/32
(where x is no. of days in which work is competed)
We know that ¼ + x – 6/32 + x/64 = 1
We know 16 + 24 – 12 + x /64 = 1
We know 3x + 4 = 64
We know x = 60/3 = 20 days
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