- 5%
- 10%
- 20%
- 30%
- c
-
Let C.P. = Rs. 4x. Then, S.P. = Rs. 5x
Gain = (5x – 4x) = Rs. xGain % = (x * 100)/ 4x = 25%.
Mathematics MCQs
All Mathematical MCQs from different papers are solved in this sections. All Math related MCQs have uploaded in this portion of ETEST Website. Visitors should visit ETEST Website regularly for Best Jobs Tests Preparation because ETEST Team updates ETEST Website on daily basis.
The average of 5 quantities is 6. The average of 3 of them is 4. What is the average of remaining 2 numbers?
- 9
- 9.5
- 10
- 11
- a
-
average=Sum of observation/no of observation6= sum of observation/5so sum of observation= 30so sum of three + sum of two observation= 30so (4*3)+sum of two observation= 30sum of two observation= 30-12=18so it's average= 18/2= 9so 9 is answer
A ratio equivalent to 3 : 7 is:
- 3:9
- 9:21
- 6:10
- 18:49
- b
-
9:21
3:7 (Divided by 03)
The number of boys in a class is three times the number of girls. Which one of the following numbers cannot represent the total number of children in the class?
- 40
- 42
- 44
- 45
- b
By converting 142.5% into decimal, answer will be:
- 0.1425
- 0.1425
- 1.425
- 14.25
- c
-
142.5%
1425/10 * 1/100
1425/1000
1.425
Average age of A and B is 30 Years, that of B and C is 32 Years and the average age of C and A is 34 Years. The age of C is:
- 36
- 38
- 40
- 42
- a
-
Average of A & B is
( A+B) /2 = 30 ⇒ A+B=60 ⇒ A= 60 – B —- (i)
( B+C)/2 = 64 ⇒B+C = 64 ⇒ B= 64 – C—- ( ii )
Putting value of B in equation ( i )
⇒ A= 60 – 64 +C ⇒ A = -4 + C —– ( iii)
( C+A)/2 = 34 ⇒ C+A=68 ⇒ C = 68 – A —–(iv)
Puuting value of A from eaquation ( iii) to eq. (iv)
⇒ C= 68 +4 -C ⇒ C =36
3 Boxes have some average weight. When one box which weights 89 kg is replaced by another box, the average weight increased by 5 kg, How much the new box weighs?
- 104 Kg
- 94 Kg
- 109 Kg
- 50 Kg
- a
Solve : 8 / 0.2 =?
- 25
- 30
- 35
- 40
- d
-
8/0.2
8*10/2
8*5
10
Largest perfect square between 4 an 50 is:
- 35
- 40
- 45
- 49
- d
-
25=52
36=62
45=No Square
49=72
A man buys an article for Rs.27.50 and sells it for Rs.28.60. Find his gain percent?
- 1%
- 4%
- 3%
- 5%
- b
-
Purchase = 27.50
Sale = 28.60
Profit = 28.60-27.50=1.1
Profit %age = 1.1/27.50*100
Profit %age = 4