Practice Numbers – A candidate scores an aggregate of 60% marks, scoring an average of 56% in 4 of the papers and 68% in the others. How many papers were there totally?
Practice Numbers – The average of four consecutive even numbers is 27. The largest of these numbers is :
Practice Numbers – A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Rs. 100. What is the reduced price per kg ?
Practice Numbers – The average of five results is 46 and that of the first four is 45. The fifth result is :
Practice Numbers – The average age of five persons is 40 years while the average age of some other 10 persons is 25 years. The average age of all the 15 persons is:
Practice Numbers – Three numbers A,B,Care in ratio 1:2:3. Their average is 600. If A is increased by 10% and B is increased by 20%, then to get the average increased by 5%, C will increased by:
Practice Numbers – A man gave Rs.A for buying every 10 items and Rs.B for buying every extra item. If he bought 10 items on Monday 13 items on Tuesday, 12 items on Wednesday, 11 items on Thursday and 12 items on Friday then what is his average daily spending in rupees for the five days?
Practice Numbers – The average number of visitors of a library in the first 4 days of a week was 58. The average for the 2nd, 3rd, 4th and 5th days was 60.If the number of visitors on the 1st and 5th days were in the ratio 7:8 then what is the number of visitors on the 5th day of the library?
Practice Numbers – There are 5 packages. The weight of 1st package is 500 kg and the weight of the 2nd package is 50% higher than the weight of 3rd package whose weight is 45% higher than the 1st package weight. The fourth package at 360 kgs is 60% lighter than the fifth package. Find the average weight of all the five packages.
Practice Numbers – The average length of three tapes is 6800 feet. None of the tapes is less than 6400 feet. What is the greatest possible length of one of the other tapes?
Practice Numbers – With just six weights and a balance scale, you can weigh any unit number of kgs from 1 to 364. What could be the six weights?
Practice Numbers – I drove 60 km at 30 kmph and then an additional 60 km at 50 kmph. Compute my average speed over my 120 km.
Practice Numbers – In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?
Practice Numbers – The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
Practice Numbers – The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is: