Explanation plz
What annual payment will discharge a debt of Rs.808 due in 2years at 2% per annum ?
There are two approaches for this can anyone explain both the approaches
1st approach
[x + [(x*2*1)/100]] + x =808
2nd approach
[x/(1+(2/200)]+[x+(1+(2/100))^2] = 808
Thanks
a/b=b/c=c/d=3/4 if b gets 308 less than d find a b c d
three friends A B C went on a picnic. A brought 5 apples and B brought 3 apples, and C had rs.80. They divided the apples equally among themselves and C gave all his money to A and B for their contributions. What are the shares of A and B
I how many ways can 6 letters A, B, C, D, E and F be arranged in a row such that D is always somewhere between A and B?
Explain with soln plz
DATA SUFFICIENCY.
In a family of three generations, find the number of parents.
I. Four persons in the family are only parents.
ii. There are twelve children in the family and some of the children could be parents as well.
DO MENTION THE APPROACH TOO.THANKS
Please mention the approach to solve this.Ans is option 1
What books should I refer for Quants, lrdi & va?
Quantitative Ability Quiz for CMAT, MAT
Dear readers,
This quiz consists of questions from past MAT actual papers. Leave your answers/ responses in the comments section below and soon we'll let you know the correct answers!
1. If the price of gold increases by 30%, find by how much the quantity of ornaments must be reduced so that the expenditure may remain the same as before?
(1) 30% (2) 23 (1/13) % (3) 27 (2/13) % (4) 19%
2. A monthly return railway ticket costs 25 per cent more than a single ticket. A week's extension can be had for the former by paying 5 per cent of the monthly ticket's cost. If the money paid for the monthly ticket (with extension) is Rs 84, the price of the single ticket is:
(1) Rs 64 (2) Rs 80 (3) Rs 48 (4) Rs 72
3. A papaya tree was planted 2 years ago. It increases at the rate of 20% every year. If at present, the height of the tree is 540 cm, what was it when the tree was planted?
(1) 400 cm (2) 375 cm (3) 324 cm (4) 432 cm
4. A mixture of 40 litres of milk and water contains 10% water. How much water should be added to this so that water may be 20% in the new mixture?
(1) 6.5 litres (2) 5 litres (3) 4 litres (4) 7.5 litres
5. The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is:
(1) 5 ml (2) 4 ml (3) 3 ml (4) 6 ml
6. The average of marks obtained by 120 candidates was 35. If the average of the passed candidates was 39 and that of the failed candidates was 15, then the number of those candidates, who passed the examination, was:
(1) 120 (2) 110 (3) 100 (4) 150
7. Angad was conducting an experiment in which the average of 11 observations came to be 90, while the average of first five observations was 87, and that of the last five was 84. What is the measure of the 6th observation?
(1) 145 (2) 150 (3) 165 (4) 135
8. The average age of an adult class is 40 years. 12 new students with an average age of 32 years join the class, thereby decreasing the average by 4 years. The original strength of the class was:
(1) 12 (2) 11 (3) 10 (4) 15
9. The average age of 8 persons in a committee is increased by 2 years when two men aged 35 years and 45 years are substituted by two women. The average age of these two women is:
(1) 52 years (2) 56 years (3) 48 years (4) 44 years
10. At Narmada Sarovar Bachao demonstration, supporters of Ms Patkar outnumbered the police by 9 : 1. The police arrested 135 NSB supporters averaging 5 for every 3 policemen. How many supporters of NSB were there in the demonstration?
(1) 1215 (2) 665 (3) 405 (4) None of the above
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Anyone from Mumbai appearing for CAT 2016 ?
A milk man buys milk at rs. 15 per litre. He mixed the water with it and sell the mixture at cp. In what proportion is water mixed with milk if his profits were 25/4%.
Post solution too!!
Can anyone tell me how is 2n+1Cn + 2n+1Cn-1 + 2n+1Cn-2 + 2n+1Cn-3... 2n+1C0 = (2^2n+1)/2 ?
If the selling price of 10 apples is equal to the cost price of 14 apples, which, in turn is equal to one-third of the total discount offered upon 70 apples. Then find the profit / loss percentage when the mark-up percentage is halved and the discount percentage is decreased by 5 percentage points
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How to solve this by alligation ?
There are 560 pen, and they are divided into 3 categories, and them at a profit of 12%, 16% and 20% respectively. Profit made from first two categories is 13% and overall 15% profit made all categories.
Find the no. of pen in each category
6. What is the sum of the digits of a two-digit number, which is 12 less than the square of the sum of its digits? (1) 9 (2) 7 (3) 6 (4) None of these Approach PLS ?
Problem No 32, please share the solution.
The midpoints of the four sides of a regular hexagon are joined to form a rectangle. What is the ratio of the area of the rectangle to that of the hexagon?
In a race on a circular track, Atul, Himesh and Yamini start from the same point N in the same direction. Their speeds are n m/s,(n+1) m/s and (n+2) m/s respectively where n is a natural number. How many times will they meet before they meet for the first time at point N (n>0)?.
Sol.pls