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Let length of train A = x Length of platform = 2x Speed = distance/time ⇒ 144 x 5/18 = (x + 2x)/24 ⇒ x = 320 m = length of train A Length of platform = 320 x 2 = 640m For train B, Speed = distance/time ⇒ (640 + 800)/36 x (18/5) ⇒ 144 km/hr
A student scores 44% in a test and falls short by 16 marks for passing. The test is out of 250 marks. What is the minimum passing percentage?
'Q' spends 25% of his monthly income on rent, 40% on groceries, and 15% of the remaining amount on entertainment. He saves the rest of the money in a fi...
The value of A’s car is depreciating by 25% every year whereas the value of his house is appreciating by 12% each year as compared to the previous yea...
Sonia goes to a clothing store with a certain amount of money. She can buy 90 shirts or 30 trousers with the money she has. However, she decides to save...
A man bought a Rs 72 share of a company which paid 10% dividend. If the man got 18% on his investment, at what price did he buy the share?
The only expenses of Arun are on grocery, rent and fun expenses. Arun spent Rs. 5,250 on fun, amount spent by him on rent is Rs. 9,000 more than that on...
The income of Suresh is 30% higher than that of Mukesh. While Mukesh spends 80% of his income, Suresh spends 60% of his income. If Suresh saves Rs. 6,50...
A student gets an aggregate of 60% marks in five subjects in the ratio 10 : 9 : 8 : 7 : 6. If the passing marks are 45% of the maximum marks and each s...
Anchal allocates 20% of his monthly salary to transportation, dedicates 50% to shopping, and invests 20% of the remaining balance in food expenses. The ...
The income of Tina is Rs.24000 and she saves 15% of her income. The savings of Kajal is Rs.2000 more than that of Tina and she spends 60% of her income....
