In a number, the hundreds digit is 2 more than the tens digit. Find the number. A. 975 B. 753 C. 642 D. None of these Explanation: Insufficient data for a unique solution.
A candidate attempts 8 questions and gets 50% marks. Total questions are ____. A. 8 B. 10 C. 15 D. 16 Explanation: Solving the proportion gives a total of 10 questions.
In a survey, 80% own cars and 60% own bikes. What percent own both? A. 40% B. 80% C. 85% D. 97.5% Explanation: Minimum overlap = 80 + 60 − 100 = 40%.
In a ship, food for 800 men lasts 50 days. For 1000 men, it lasts ____. A. 40 B. 50 C. 30 D. 56 Explanation: Inverse proportion gives 40 days.
In a school of 850 students, 44% are Muslims, 28% Hindus, 10% Sikhs. Remaining are ____. A. 173 B. 163 C. 153 D. 143 Explanation: Remaining = 18% of 850 = 153.
A man rows 3 km upstream in 3 hours and 15 km downstream in the same time. Find stream speed. A. 2 km/hr B. 4 km/hr C. 6 km/hr D. 9 km/hr Explanation: Using upstream/downstream equations gives 2 km/hr.
A rhombus has an area of 144 sq cm and diagonals in the ratio 1:2. Find the diagonals. A. 24 cm, 48 cm B. 12 cm, 24 cm C. 6√2 cm, 12√2 cm D. 6 cm, 12 cm Explanation: Area = (d1 × d2)/2 yields diagonals 12 and 24.
In a week, working hours are 8 per day. A man earns Rs. 2.40/hour and Rs. 3.20/hour for overtime. Total earnings were Rs. 432 in 4 weeks. How many hours worked? A. 160 B. 175 C. 180 D. 195 Explanation: Solving the linear Equation gives 175 houRs.
A car travels at 150 km/h. If it travels at 180 km/h, how much time is saved over 450 km? A. 50 km B. 45 km C. 40 km D. 30 km Explanation: Time saved = 45 minutes equivalent.
In a 1000 m race, A beats B by 100 m. In an 800 m race, B beats C by 100 m. By how much does A beat C? A. 57.5 m B. 127.5 m C. 150.7 m D. 98.6 m Explanation: Using the proportional race method gives 127.5 m.