x-y=8 and P= 7x^2 - 12y^2, where x,y > o. What is the maximum possible value of P.
A. Infinite B. 352.8 C. 957.6 D. 604.8
I would like to know the approach. TIA. 😃
A two digit number is 18 less than the square of the sum of its digits. How many such numbers are there?
A group of students equal in number to the square root of half the whole class is selected for a project. Two more students were selected as captain and vice captain. Rest of the class which form 8/9 th of the class were given leave. Find the total number of students in the class?
a)64
b)72
c)80
d) none of these
A bottle is exactly filled with coke weighs 1600 gm but when its 1/3rd filled its weight is 900 gm . The weight of the bottle is...?
- 550
- 1100
- 650
0 voters
Jose is an avid reader. He wants to order some books on Mathematics, History and Literature from an e-commerce website. In how many ways can he order at least one book each on Mathematics, History and Literature from 3 distinct books on Mathematics, 4 distinct books on History and 5 distinct books on Literature?
4096
3255
4095
2520
Pls explain..
What are the values of x and y that satisfy both the equations?
2^(0.7x) * 3^(-1. 25y) = 8√6/27
4^(0.3x) * 9^(0.2y) = 8 . (81)1/5
A. x=2,y=3
B. x=3,y=4
C. x=5,y=2
D. x=2.5,y=6
Can any body help me for notes or pdf of short tricks for solving di and quant(number system , percentage)
hey puys
the problems on the concept of numbers are giving me a hard time...any link or something else u can recommend for getting over them ??
A train meets with an accident and then it travels at 4/7 of its regular speed due to which it reaches the destination 36 minutes late. Had the accident occured 30 km futher, the train would have been late only by 21 minutes. Find the regular speed of the train.
Explain
If the first 99 natural numbers are written side by side to form a new number 12345678 .... 9899, then find the remainder when this number is divided by 37. a. 6 b. 5 c. 4 d. 7 e. None
If 'h' be the height of a pyramid standing on a base which is an equilateral triangle of side 'a' units, then what is the slant height (in terms of a and h)?
An open box is made of wood 2 cm thick. Its internal length is 86cm, breadth 46 cm and the height is 38cm. The cost of painting the outer surface of the box at Rs. 10 per m is -
1) Rs.18.5
2) Rs.8.65
3) Rs. 11.65
4) Rs, 17.50
Alok works 25% faster than Bishnoi, who is 100/3% faster than Charan. Bishnoi takes 10 more days than Alok to complete a piece of work. Charan works for 11 days and Alok for 19 days. How many days does Bishnoi takes to complete the remaining work ?
Hello guys , Can anyone solve this problem by using Alligations method (I am sure this method is time-saving)? Kindly share the solution.
Q : A sum of Rs. 1800 was split into two parts.One of the parts was invested
at 6% p.a. simple interest and the other part was invested at 5% p.a. compound interest.Both parts were invested for 2 years.If the total interest realized from the two parts is Rs. 195,find the part invested at simple interest.
options for the previous questions are
- Rs. 800
- Rs. 600
- Rs. 1200
- Rs. 100
0 voters
Hi all,
Pointers to reference material(youtube video/ pdf) for Venn diagram/ set theory. Much appreciated
If n balls are arranged in a row, then the number of ways of selecting 3 out of these balls so that no 2 of them are next to each other is? Approach pls.
Find the greatest no of four digits which when divided by 10,11,15 and 22 leaves 3, 4, 8 and 15 as remainders respectively.
a.9907
b.9903
c.9893
d.none
How many natural numbers up to 1155 are divisible by either 5 or 7 but not by 11?
How many integer values of x ?
|x-2| + |x+3| + |5-x| + |x-8|