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Last year, the prices of tea and coffee (per kg) were in the ratio of 3 : 4. The price of tea last year and this year is in the ratio of 4 : 5 and that of coffee is in the ratio of 8 : 9. This year, a kg of coffee and a kg of tea together cost Rs.66. How much does a kg of tea cost this year?
a man rows upstream in a river. When hr covered 1 km from starting point his hat fell down and it started to move downstream whilr the man kept swimming upstream for 5 mins but realised he dropped his hat , then rows downstream to catch the hat. Finally the hat and man meet at start at the same time . calculate speed of stream . (it'll be really helpful if you could explain in detail the ans . Thanks! )
- 7.5km/hr
- 10km/hr
- 15km/hr
- none
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Right triangles properties :- 1) Exactly one side is divisible by 3. 2) Exactly one side is divisible by 5. 3) Two odd and one even number side possible. 4) Area always divisible by 6. (For positive integers) Plz #check the validity of each of the above claims.
Number of ways in which we can divide 20 men and 20 women into 20 couples ??
A box B1 contains 5 yellow and 4 green balls and another box B2 contains 4 yellow, 3 green and 2 red balls. First, a ball is transferred from B2 to B1 at random and then a ball is transferred at random back from B1 to B2. What is the probability that at the end of the two transfers, the configuration of the boxes remains the same as what it was?
Let (3 + 2*sqrt2)^6 = I + f, where I is the integral part and f the fractional part. Find the value of 1/(1-f) - f
#TITA
What is the unit digit of (2^10)base3 in base 3?- Can someone please explain to me that how (2^10)base3=(2^3)base10. Thanks a lot
There are how many maximum closed regions created by 13 lines in which no two are
parallel or concurrent??
to date for work experience in FMS form? is it today's date or some future date?
Total number of isosceles triangles (excluding equilateral triangles) with integer sides if length of no side exceeds 10 units isa 45b 90c 75d 65
Kindly explain your approach 😃
Anybody know where to get solution for Official CAT mock?
There are 12 holes made in the ground. At least 3 are to be filled with a red ball and the other holes can be filled with any colour ball. In how many different ways can all the holes be filled from a box of 5 red balls and 10 mixed colour balls?
Either there is a problem with Question or i am somewhere inherently wrong...
All the 7-digit numbers containing each of the digits 1, 2, 3, 4, 5, 6, 7 exactly once, and not divisible by 5, are arranged in the increasing order. Find the 2015th number in this list.
Data sufficiency: Source CAT 2003 Leaked
AB is a chord of a circle. AB = 5 cm. A tangent parallel to AB touches the minor arc AB at E.
What is the radius of the circle?
A. AB is not a diameter of the circle.
B. The distance between AB and the tangent at E is 5 cm.
Doubt: Using second statement we do get a unique value of r but such a circle is not possible. What should be marked in that case.
http://s1.postimg.org/jmn22emy7/screenshot_886.jpg
how to solve this ? any shorter approach rather than the regular conventional way ?
*.When A alone do a piece of work, he takes 9 days more than A & B together take,When B alone do the same piece of work, he takes 4 days more than A & B together take.Find how many days will A & B together take to complete that piece of work.......please explain.....if any shortcut for this kind of problem exist please share
In a cricket match between India and Srilanka, Malinga, a Srilankan pace bowler, can bowl at most four overs out of 20 overs in the match. No bowler can bowl two consecutive overs. If it is known that the 20th over was bowled by Malinga, which was also his fourth over, then in how many ways could he have bowled the rest of his overs?
How many 3-digit even numbers can you form such that if one of the digit is 5, the following digit must be 7?