Question
A train of 175 metres is running at a speed of 72 km/h and
crosses a platform in 36 seconds. Determine the length of the platform.Solution
ATQ,
Let the length of the platform be ‘x’ metres
Speed of the train = 72 × (5/18) = 20 m/s
ATQ,
(x + 175) = 20 × 36
Or, (x + 175) = 720
Or, x = 720 - 175
Or, x = 545
Therefore, the length of the platform = 545 metres
A starts business with Rs.11000 and after 8 months, B joins with A as his partner. After a year, the profit divided in the 5:9. What is B’s contribut...
A and B started a business by investing Rs.5000 and Rs.9000 respectively. After 6 months A withdrew 50% of his investment. If at the end of the year, pr...
Aman and Bharat together begin a business by investing in the ratio 8:6 respectively. After 6 months, Chetan joins them with an investment equal to the ...
'A' and 'B' invested Rs. 4200 and Rs. 3600 respectively in a business. After 6 months, 'B' reduced his investment by 50%, while 'A' increased his initi...
A and B started a business by investing Rs.420 and Rs.540 respectively. After 5 months, A increased his investment by Rs.900. Find the ratio of annual p...
X and Y commenced a business jointly, contributing initial capital amounts of Rs. 20,000 and Rs. 50,000, respectively. X, being the active partner, rece...
M and N invested Rs. 28000 and Rs. 22000 in a business. After 3 months, O joined with Rs. 35000. At the end of the year, M’s share is Rs. 3500 more th...
Sneha invested Rs. A and Leena invested Rs. (A + 25) for 18 months and 15 months respectively. Their profit ratio is 9:10. Find Leena’s investment.
‘Riya’ invested Rs. 1,600 in a business. After 9 months, ‘Simran’ joined her with 50% of Riya's capital. If the total annual profit is Rs. 4,500...
‘P’ and ‘Q’ entered into a business with initial investments of Rs. 1000 and Rs. 700 respectively. After 3 months, ‘P’ withdrew Rs. 300 whil...
Relevant for Exams:
