Recently Active Class Vii X Mathematics Questions

if there are n arithmetic means between a and b,then common difference d is-(b-a)/(n+1).......how??? ...

PN, PM, and AB are tangents to the circle as shown. If PM = 11 in., then find the perimeter of ΔPAB *Image* ...

Two different no.s when divided by the same the remainders are 4 and 3.When their sum is divided by the same divisor the remainder is 1. What is the divisor? ...

If 2^x=3^y=6^-z,then what is the value of 1/x+1/y+1/z? How should I do this ? ...

In a class of 70 students, the ratio to boys and girls is 4:3. Among girls the no of rich to poor girls is 1:4. If the ratio of rich and poor students is 8:27.Find the ratio of rich and poor boys in the class. ...

If x=2+2^2/3+2^1/3,show that x^3-6x^2+6x-2=0. I cannot match the answer. My answer = 6. Is there anything wrong with the Q or have I done something wrong in doing the sum? ...

A merchant has 3 different kinds of milk: 453 l, 493 l and 551 l. Find the least no of casks of equal size to store all the milk without mixing? How will I do this sum? ...

*Image* Thanx in advance... ...

Find the HCF of 2/3,4/6,8/27 Your Answer Not Attempted Correct Answer a a.2/27 how it is possible?the answer should be 1/27,and what about my marks? ...

The fractional representation of the no 11.457 11343/990 11457/1000 1138/999 11343/999 Your Answer a Correct Answer d HOW? 25)Which of the following nos. is between 0.1123476 and 0.1123571? 0.112523 0.1123473 0.1123473 Both a ...

find a positive integral solution to the equation- 1+3+5+.....................+(2n-1)/2+4+6+..........2n = 115/116 ...

A certain amount of money is to be divided between A and B in the ratio 3:1.But because of a miscalculation A received 1/14 of the total money additionally. Find the ratio in which they divided the money. 5:2 14:9 23:5 None Y ...

If n is a positive integer such that n/810 Â = 0d25d25 where d is a single digit in decimal base. Find 'n'... ...

Prove that a4 + b4+ c4 >= abc( a + b + c) ...

In a certain base system, a number is written as 3326. Which of the following cannot be the value of the given number in decimal system? (a) 774 (b) 1203 (c) 1758 (d) 2463 Thanx in advance,,, ...

(3+2 6 )x2-3 + (5+2 6 )x2-3=10 plzzzzz........help to find the value of x..... plzzz.. as fast as possible.... ...

If S = 1 - 22 + 32 - 42 upto n terms and n is even, then find S. ...

if x+1/x=12 then x-1/x=? ...

prove that product of evert three consecutive integers is always divisible by 3 as well as 2.... plzz help.. ...

If a merchant estimates his profits as 20 % of the selling price, what is his profit percent? Show the process. ...

What is the remainder when 7187 is divided by 800? ...

If x(1/m)=y(1/n)=z(1/p) and xyz=1 , find m + n + p ...

Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds? ...

In a forest, ratio of no. of deers, bear and fox is 3 : 7 : 5. If the difference between no. of deers and bears is a multiple of 3 as well as 7, what is min. no. of animals in the park? ...

If xx x = (x x )x then find x. ...

3 burgers,2pizzas and 5 cokes cost 565. now 4 burgers,4 pizzas and 2 cokes cost 310 .then what is the cost of 5 burgers , 4 pizzas and 6 cokes? please show the working along with the answer! ...

If the points (1, 3) and (5, 1) are two opposite vertices of a rectangle, and other two vertices lie on the line y = 2x + c, then find value of c. ...

The area of a square of side (2x − ay + 3) is A(x) + a2y2 + 2y (2x + 3), where A(x) is a polynomial in the variable x. What is the value of the constant a? ...

If x-a is a factor of x3-a2x+x+2, a =? ...

Find the solution: x - 1 = 1/3 + 1/(2 + 1/(3 + 1/(2 + .....)to ∞ ) ) ...