36. The least multiple which is common for both 15 and 25 is
(A) 75
(B) 25
(C) 50
(D) 15
Answer:
(A) 75
Explanation:
This question asks for the Least Common Multiple (LCM) of 15 and 25. The multiples of 15 are 15, 30, 45, 60, 75… and the multiples of 25 are 25, 50, 75… The smallest number they have in common is 75.
37. 1x2x3x4x5x6 =
(A) 720
(B) 21
(C) 600
(D) 300
Answer:
(A) 720
Explanation:
The product of the first six positive integers (also known as 6 factorial or 6!) is 720.
38. The largest 9 digit number ending with 7 is
(A) 77,77,77,777
(B) 10,00,00,007
(C) 10,00,09,007
(D) 10,00,00,907
Answer:
Flawed Question
Explanation:
The actual largest 9-digit number ending with 7 is 999,999,997. This number is not available in the options provided in the source document, which makes the question unanswerable as presented.
39. The digit immediate to the right of ten lakhs shows ______ place.
(A) Crore
(B) Ten crore
(C) Ten thousand
(D) Lakh
Answer:
(D) Lakh
Explanation:
In the Indian place value system, the order is Ten Lakhs, then Lakhs, then Ten Thousands. The place immediately to the right of Ten Lakhs is the Lakhs place.
40. 11/35 subtracted from 12/15 is
(A) 85/35
(B) 33/35
(C) 11/15
(D) 17/35
Answer:
(D) 17/35
Explanation:
To solve this, we need to calculate
15
12
−
35
11
.
Find a common denominator: The least common multiple (LCM) of 15 and 35 is 105.
Convert the fractions:
15
12
=
15×7
12×7
=
105
84
35
11
=
35×3
11×3
=
105
33
Subtract the fractions:
105
84
−
105
33
=
105
84−33
=
105
51
Simplify the result: The greatest common divisor of 51 and 105 is 3.
105÷3
51÷3
=
35
17
The final answer is 17/35, which corresponds to option (D).
41. Mixed fraction for39/12 is
(A) 3 1/12
(B) 3 2/12
(C) 3 3/12
(D) 3 12/3
Answer:
3 3/12
Explanation:
Uploaded soon
42. Co prime numbers are numbers whose common factor is
(A) 1
(B) 2
(C) 0
(D) Their product
Answer:
(A) 1
Explanation:
By definition, co-prime numbers (or relatively prime numbers) are numbers whose only common factor is 1.
43. If the SP is less than CP, there is
(A) A profit
(B) No profit, No loss
(C) A gain
(D) A loss
Answer:
(D) A loss
Explanation:
When the Selling Price (SP) is less than the Cost Price (CP), the result is a financial loss.
44. Over head charges is added to
(A) SP
(B) CP
(C) Profit
(D) Loss
Answer:
(B) CP
Explanation:
Overhead charges are extra expenses that are added to the initial cost price (CP) to determine the total cost of a product.
45. Profit =
(A) CP−SP
(B) SP−CP
(C) CP+SP
(D) CPSP
Answer:
(B) SP−CP
Explanation:
Profit is calculated by subtracting the Cost Price (CP) from the Selling Price (SP).
