In a school, 40% of the students are boys, and the rest are girls. If 75% of the boys and 80% of the girls passed an exam, what percentage of the total students passed the exam?
Let the total number of students be 100. Number of boys = 40, number of girls = 60. Boys who passed = 75% of 40 = 30. Girls who passed = 80% of 60 = 48. Total students who passed = 30 + 48 = 78. Percentage of students who passed = 78%. Thus, the correct answer is 78% .
A milk vendor has 93 litres of cow pure milk, 62 litres of toned milk and 124 litres of double toned milk. If he wants to pack them in cans so that each...
A Hemi sphere has a volume of 486π cubic units. What is the radius of the sphere?
A car travel 20km/h for 30 min and at x km/h for 45 min. If the average speed of the car for entire journey is 14 km/h find the value of x.
A shopkeeper has 78 kg rice a part of it, he sells at the profit of 26% and rest at loss of 13% and he get the loss of 9% so what is the quantity sold a...
In what ratio rice at 52 Rs/kg should be mixed with the rice at 36 Rs/kg so that selling mixture at Rs 50 per kg gives the profit of 25% if the quantity...
In what ratio coffee at 325 Rs/kg should be mixed with the coffee at 375 Rs/kg so that after mixture its rate become 340 Rs/kg if the quantity of 1st ty...
A shopkeeper mixes two types of rice costing Rs 60 per kg and Rs 80 per kg in a ratio. He sells the mixture at Rs 85 per kg and gains a profit of 25%. I...
A jug initially contains 80 liters of a mixture of milk and chocolate, with the quantity of chocolate being 30% of the total mixture. A liters of the mi...
A petrol pump has a blend of 40 liters of petrol and diesel in the ratio of 5:3. After selling 16 liters of the mixture, 12 liters of petrol are added t...
