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Let the length of train ‘A’ be ‘x’ metres Therefore, length of the goods train = ‘4x’ metres Speed of train ‘A’ = 108 × (5/18) = 30 m/s According to the question, 4x + x = 30 × 20 => 5x = 600 => x = 120 Therefore, time taken by train ‘B’ to cross train ‘A’ = {(120 + 200)/(20 + 12)} = 10 seconds
‘A’ and ‘B’ started a business by investing certain sum in the ratio 10:13, respectively for 6 years. If 8% of the total profit is donated in an...
Harvey, Mike, and Donna started a business together, with the ratio of Harvey's investment to Mike's being 5: x, and the ratio of Mike's investment to D...
The savings of G and H are equal. The difference between H's expenditure and the total savings of G and H is nil. H's income amounts to Rs. 45,000, and ...
A and B initially started a business by investing Rs. 1600 and Rs. 2100, respectively. After 6 months, C joined the business with an investment of Rs. ...
Two partners A and B invested Rs 70,000 and Rs 50,000 respectively in a business. Both the partners distribute 75% of the profit equally and distribute ...
A invest twice the sum invested by B and withdraws half of sum after 5 months and again withdraws half of the remaining sum after 6 months. Find ratio o...
A, B and C enter into a partnership with capitals in the ratio 2/3 : 3/5 : 5/6 . After 8 months, A increases his share of capital by 25%. If at the end ...
Gopal and Henry initiated a business venture with investments of Rs.3200 and Rs.2400, respectively. After six months, Kirti joined the partnership with ...