Ans.(a)
- A man can row 30 km upstream and 44 km downstream in 10 hours. Also, he can row 40 km upstream and 55 km downstream in 13 hours. Find the rate of the current and the speed off the man in still water.
- 120 men consume 720 kg of rice in 30 days. In how many days can 90 men consume 270 kg?
- Colour of the Urine is yellow because of-
- Ratio between areas of two squares is 36:25. What would be the ratio between their perimeter.
- A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the speed of the boat in still water and the stream are 10 km/hr and 4 km/hr respectively, the distance of the destination from the starting place is
- Which was the first newspaper to be published in India?
- which animal breathe through skin?
- Alpha-keratin is a protein present in which thing?
- What is the ratio of RBC to WBC-
- ‘Gobar gas’ contains mainly which gas?