Question
A taxi takes 75 minutes to cover 100 km. If the driver
reduces the speed by 10 km/h, find how long it will take to cover the same distance now.Solution
ATQ, Speed of the taxi = (100/75) × 60 = 80 km/h New speed of the taxi = 80 – 10 = 70 km/h So, required time = (100/70) × 60 = 85.7 minutes or about 1 hour and 26 minutes
A man donated 15%, 20% and 23% of his income to three NGOs ‘A’, ‘B’ and ‘C’, respectively. They spent 75%, 80% and 50% of respective sums re...
Arvind spends 30% of his salary on travelling and 25 % on car fuel. If he spends 10% of his remaining salary on food and saves the rest, then What will ...
Sahil spent 10% of his monthly income on education, 20% on entertainment, 15% on rent, 40% on travelling and the rest on food. If the difference between...
In a certain school, 60% of the students are girls, and the rest are boys. If the number of boys in the school is 480, how many students are there in to...
A shop sold 240 items in January. Sales increased by 25% in February and decreased by 20% in March. Find average monthly sales for these 3 months.
Pawan has some money left after spending 20%, 15% and 30% of monthly salary on rent, electricity and shopping respectively. The remaining money with Paw...
Meenu spent 10% of the salary on entertainment and 20% on makeup. She spent 20% of the remaining on the food and 50% of the remaining invested in mutual...
A company has 1200 employees, with 45% working in operations, 35% in sales, and the rest in HR. During an appraisal cycle, 20% of the operations employe...
In an examination a candidate who gets 30% of the marks fails by 75 marks. But another candidate who gets 42% marks gets 15 marks more than are r...
A student scored 75 marks in Mathematics, 85 marks in Science, and 90 marks in English out of a total of 100 marks in each subject. If the weightage of ...
