Aseem writes three single-digit numbers, starting from 1, on a black board. The numbers written by him form an arithmetic progression. Ruchika, who is a friend of Aseem, erases one of the numbers written on the black board. If the average of the remaining numbers is 5.5. The number erased by Ruchika is?
Options are 1,4,7, cnd. Please explain.
5 years ago, age of a person was 3 years more than 4 times the age of his son.3 years hence, the age of the person will be 6 years less than thrice the age of his son.after how many years from now will their combined age be 80 years?
An ant and a fly are standing at a point along the rim of a base of a hollow right circular cylinder. The height of which is twice the radius. They want to reach the diametrically opposite point along the rim of the top of the cylinder. The ant walks along the inner surface of the cylinder taking the shortest possible route. whereas the fly directly flies towards that point taking the shortest possible route. If the walking speed of the ant is half the flying speed of the fly. What is the ratio of the time taken by the ant and the fly to reach that point
10000!=(100!)^k * P, find maximum value of k, where K,P are Integers.
Options: 1.103 2.104 3.100 4.105
the number 523abc is divisible 7 , 8 and 9. The value of a*b*c is
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TIME is providing video sessions on its portal. Anyone has any idea regarding the quality of those videos?
If p + q + r + s = 60, how many even factors does maximum value of p*q^2*r^3*s^4 have? (p, q, r and s are natural numbers)
A vessel is filled with liquid 3 parts of which is water and 5 parts syrup.. What % of mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup ?
koi plz mjhe bata do ye pgp , pgdm , aur fpm me difference....kya h...........
Find the remainder of 888222888222. . . . . up to 9235 digits divided by 53 ??
the number of equilateral triangles that can be formed by
joining the vertices of a n sided polygon is 9, then find the value of n?
A quadratic function attains its minimum value of -15 at x=3, If f(0)=5
find the value of f(9) ??
Naman Sweets, a sweet shop in down town Allahabad,manufacturers Rossagullas for export. They are currently experimenting with an ideal sugar syrup concentration for their new product. Originally, the sugar in the syrup is 33.33% by weight. The syrup is heated till 25% of the water in it evaporates. The resultant solution is mixed with a 40% sugar syrup in the ratio 5:3. The sugar so obtained is again heated to evaporate 33.33% of water in it. Find the strength of this solution assuming the solution never saturates.
a.50% b.slightly more than 90%
c.slightly more than 75% d.35%
Out of n consecutive natural numbers, 4 numbers are selected such that the differences of all the possible pairs are distinct. What is the least value of n for which this is possible ??
Two sets of boys are playing a match of catching. It is decided that once the ball falls on the ground from the hands of a side it would get the other side as many points as the number of meters the ball travels before coming to rest and the play won't resume until that happens. It is also known that height of a fall is exactly 150% of that of the bounce for the kind of balls to be used for the match. In the first instance Raghav's team dropped the ball a height of 45m.How many points does Shaurya's team gain?
a.90 b.135
c.225 d. None of these
Urn 1 has 4 red and 6 black marbles whereas Urn 2 has 7 red and 5 black marbles. A Red marble drawn from urn 1 and is put into urn 2. Then a marble is drawn from urn 2. Find the probability of it being red.
Last two non zero digits of 37!
In a 1000m race , Ravi gives Vinod a start of 40m and manages to beat him by 19 seconds. But, if Ravi gives Vinod a start of 30 seconds, then Vinod manages to beat him by 40m . What is the ratio of the speed of Ravi and Vinod ?
Couldn't find the answer.. please come up with an approach ..