A. 90 min
B. 100 min
C. 110 min
D. 120 min
✅ The correct answer is option B. 100 min.
20. Calculate the number of bricks, each measuring 25 cm * 15 cm * 8 cm required to construct a wall of dimensions 10 m * 4 m * 5 m when 10% of its volume is occupied by mortar?
A. 4000
B. 5000
C. 6000
D. 7000
✅ The correct answer is option C. 6000.
17. A, B and C started a business with capitals of Rs. 8000, Rs. 10000 and Rs. 12000 respectively. At the end of the year, the profit share of B is Rs. 1500. The difference between the profit shares of A and C is?
A. Rs. 300
B. Rs. 400
C. Rs. 500
D. Rs. 600
✅ The correct answer is option D. Rs. 600.
14. If the roots of the equation 2×2 – 5x + b = 0 are in the ratio of 2:3, then find the value of b?
A. 3
B. 4
C. 5
D. 6
✅ The correct answer is option A. 3.
Let the roots of the equation 2a and 3a respectively.
Let the roots of the equation 2a and 3a respectively.
2a + 3a = 5a = -(- 5/2) = 5/2 => a = 1/2
Product of the roots: 6a2 = b/2 => b = 12a2
a = 1/2, b = 3.
1. In an examination a pupil’s average marks were 63 per paper. If he had obtained 20 more marks for his Geography paper and 2 more marks for his History paper, his average per paper would have been 65. How many papers were there in the examination?
A. 8
B. 9
C. 10
D. 11
✅ The correct answer is option D. 11.
Let the number of papers be x. Then,
Let the number of papers be x. Then,
9. A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank in?
A. 4 1/3 hrs
B. 7 hrs
C. 8 hrs
D. 14 hrs
✅ The correct answer is option D. 14 hrs.
6. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?
A. 1/455
B. 2/455
C. 1/91
D. 4/455
✅ The correct answer is option A. 1/455.
3. Find the roots of the quadratic equation: 2×2 + 3x – 9 = 0?
A. 3, -3/2
B. 3/2, -3
C. -3/2, -3
D. 3/2, 3
✅ The correct answer is option B. 3/2, -3.
Management information systems (MIS)
A. create and share documents that support day – today office activities
B. process business transactions (eg, time cards, payments, orders, etc)
C. capture and reproduce the knowledge of an expert problem solver
D. use the transaction data to produce information needed by managers to run the business
✅ The correct answer is option D.
Management information systems (MIS) use the transaction data to produce information needed by managers to run the business. In business, management information systems (or information management systems) are tools used to support processes, operations, intelligence, and IT. MIS tools move data and manage information. MIS produce data-driven reports that help businesses make the right decisions at the right time.
Management information systems (MIS) use the transaction data to produce information needed by managers to run the business. In business, management information systems (or information management systems) are tools used to support processes, operations, intelligence, and IT. MIS tools move data and manage information. MIS produce data-driven reports that help businesses make the right decisions at the right time.
Earned interest rate which is reinvested in other investment is classified as
A. compound interest
B. investment risk
C. interest rate
D. stated rate
✅ The correct answer is option A.
Earned interest rate which is reinvested in other investment is classified as compound interest. Compound interest (or compounding interest) is interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of a deposit or loan.
Earned interest rate which is reinvested in other investment is classified as compound interest. Compound interest (or compounding interest) is interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of a deposit or loan.