QBM022

Q1. The monthly incomes of A and B are in the ratio 4: 5; their expenses are in the ratio 5: 6. If 'A' saves Rs.25 per month and 'B' saves Rs.50 per month, what are their respective incomes? Q2. x varies with y then x² + y ² varies as i. x + y ii. X - y iii. x² + y ² iv. None Q3. N and A can do a work in 10 days and N alone in 12 days. In how many days can the work be done by 6 boys and 11 women together. Q4. The marks scored by a student in three subjects are in the ratio of 4 : 5 : 6. If the candidate scored an overall aggregate of 60% of the sum of the maximum marks and the maximum marks in all three subjects is the same, in how many subjects did he score more than 60%? Q5. If a lies between 2 and 3, both included, b lies between 4 and 6, both included, then what is the ratio of minimum and maximum limits of a² - b² ? Q6. A group of workers can do a piece of work in 24 days. However as 7 of them were absent it took 30 days to complete the work. How many people actually worked on the job to complete it? Q7. The proportion of milk and water in 3 samples is 2:1, 3:2 and 5:3. A mixture comprising of equal quantities of all 3 samples is made. The proportion of milk and water in the mixture is Q8. A, B and C, each of them working alone can complete a job in 6, 8 and 12 days respectively. If all three of them work together to complete a job and earn Rs.2340, what ill be C's share of the earnings? Q9. Two solutions, the first of which contains 0.8 kg and the second 0.6 kg of salt, were poured together and 10kg of a new salt solution were obtained. Find the weight of the first and of the second solution in the mixture if the first solution is known to contain 10 percent more of the salt than the second Q10. A solider was awarded for each wound inflicted upon a battle. For thr first wound he was awarded Re 1, for the second Rs.2 , for the third Rs. 4 and for the fourth Rs.8 and so on. He received in total Rs. 65,535. Find the wounds he received. Q11. Two varieties of wheat are mixed in the proportion of 3:2 and the mixture is sold at Rs 11 per kg at 10% profit. If the first Varity of wheat costs Rs. 2 more per kg than the second, what does it costs per kg? ANS: Rs. 10.80 Q12. It is 185 miles from Birghamton to New York City. If the bus takes 2 hours to travel the first 85 miles, how long must the bus take to travel the final 100 miles so as to average 50 miles an hour for the entire trip? ANS: 102 min END