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Speed of the deer = 72 km/h = 72 × (5/18) = 20 m/s Distance covered by the cheetah in 8 seconds = 72 metres + distance covered by the deer in 8 seconds = 72 + 20 × 8 = 72 + 160 = 232 metres So, speed of the cheetah = 232/8 = 29 m/s Speed of the zebra = 20 × (70/100) = 14 m/s So, relative speed of the cheetah with respect to the zebra = 29 – 14 = 15 m/s Hence, time taken by the cheetah to catch the zebra = 195/15 = 13 seconds
Deksha borrowed Rs. 500 at 5% per annum simple interest. What amount (in rupees) will she pay to clear her debt after 4 years?
Total number of students in a class is 2160, and the ratio of number of boys to girls is 2:3. If the number of boys and girls is increased by b% and (b ...
Each of the articles was marked 55% above its cost price and while selling ‘y’ % discount was given on it. The selling price of the article M is Rs....
Raj scored 30% marks in a test and failed by 40 marks, while Meena scored 50% marks in the same test and failed by 10 marks. Find the passing marks of t...
In a school with 800 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
Out of 1000 people in a village, 20% speak German and the rest speak Italian. If out of non-German speakers, 30% are males and out of German speakers 12...
J's salary is 35% less than V's salary, then how much percent more or less is J's salary compared to G's salary, given that G's s...
In a company, there are 450 employees. Out of these, 270 are men. If 60% of the women in the company are in the marketing department, and a total 137 me...
'P' allocates 25% of his income to rent and then spends 40% of the remaining amount on food and travel. After these expenses, he spends Rs. 5600 on misc...
