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The difference between simple and compound interest compounded annually on a certain sum of 10000 is 64 for 2 years. Find the interest?

The ratio of ages of Krishna and Balram is 3:4. Four years earlier the ratio was 5:7. Find the present ages of Krshna and Balram:

The sum of Rs. 2495 is divided among A, B and C such that if we decrease Rs. 15 of share A, Rs. 30 of share B and Rs. 50 of share C. Then the ratio become 3 :2:7. What are the share of A, B and C.

Find the sum to n terms of the series 3+6 + 10 + 16 + …

Find the value of ^10C_0 + ^10C_2 + ^10C_4 + ….

A cigarette pack is 5/6 th full of its capacity, then 5 cigarettes were taken out and 2 another cigarettes were put inside the pack. Now it is 4/5 full. How many cigarettes can this pack contain when it is full?

The price of an article reduces to 576 after two successive discounts. The markup is 80%above the cost price of ₹ 500. What is the new profit percentage if instead of two successive discounts the markup price was further increased successively two times by the same percentage?

The probability that an MBA aspirant will join IIM is 2/5 and that he will join XLRIis1/3. find the probability that he will join IIM or XLRI.

There is a cyclic trapezium. It has mid point segment= 13 cm It's area 52 cm^(2). One base is 10 cm find it perimeter

Find the value of (13)^3

An Item costing ₹ 600 is being sold at 20% loss. If the price is further reduced by 12.5%, the selling price will be :

In a 200 m race, A runs at a speed of 2 m/s. If A gives B a start of 10 m and still beats him by 5 s, what will be the Speed of B?

Mr. Sharma travels by car and covers 25% of his journey with a speed of 10 km/h, 45% of his journey with a speed of 5km/h and remaining 30% of his journey with a speed of 15km/ h. What will be the average speed of Mr. Sharma for the whole journey?

There is some average of 8 innings of a batsman. He scores 100 runs in9^(th)innings then average is increased by 9 runs. Find his current average

If (x^(2))/(by+cz) = (y^(2))/(ax+ cz) = (z^(2))/(ax + by)=2 (x)/(x+2a) + (y)/(y+ 2b) + (z)/(z+ 2c)= ?

Which of the following graph represents e^(-x)?

The simplification of 3.bar(36) - 2.bar(05) + 1.bar(33) equals:

A tank contains a mixture of 70 lt of milk and water. 65% of the milk and 30 % of the water are withdrawn.Therefore 60% part of the tank is remaining. Find the initial quantity of milk and water in the tank.

If x=7+4sqrt3 and xy=1 then the value of (1/x^2+1/y^2) is

Find the area of the shaded region in fig., where ABCD is a square of side 14 cm and four circles are of same radii each.

A can do a piece of work in 2 hours, B can do thrice the work in 8 hours and C can do the same work as A in 8 hours. If all of them work together, how long it would take them to complete the work :

Solve the following system of equations:1/(2x)-1/y=-11/x+1/(2y)=9,w h e r ex!=0,y!=0.

The volumes of a sphere and a right circular cylinder having the same radius are equal. The ratio of the diameter of the sphere to the height of the cylinder is

In the given figure, angleCAB = 40^(@) and angleAKB = 105^(@). Find angleKCD :

Multiply 287 by 19.

Two parallelograms stand on equal bases and between the same parallels. The ratio of their areas is :

PT is a tangent to a circle with centre O and radius 6cm. If PT is 8cm then length of OP is:

Convert (0.825)_10 to octal.

A, B and C completed a work costing Rs 1800. A worked for 6 days, B worked for 4 days and C worked for 9 days. If their daily wages are in the ratio of 5:6:4, how much amount will be received by A.

If -4 is a root of the quadratic equation x^(2)-px-4=0 and the quadratic equation x^(2)-px+k=0 has equal roots, find the value of k:

A sphere has the same curved surface as a cone of height 12 cm and base radius 5 cm. Find the radius to the nearest cm .

A train covers a distance in 1 h 40 min, if it runs at a speed of 96 km/h on an average. Find the speed at which the train must run to reduce the time of journey to 1 h 20 min.

The ratio of speeds of A is to B is 2:3 and therefore A takes 20 minutes more time than B takes.What is the time taken by A and B ?

Three numbers are in the ratio 2 : 3 : 4. If their LCM is 240, the smaller of the three numbers is:

If p /q = r/s ,then ((p +q)/( r + s )) = ?

Find rational number between a and b .

The value of 1/(log_100n)+1/(log_99n)+1/(log_98n)+...+1/(log_2n) is :

What is the locus of the vertices of all the quadratic equations whose roots are m times the certain given roots sayalphaandbeta?

Watch India Corporation made a wrist watch in which the minute hand makes one complete round of dial in 12 minute and accordingly the hour hand too. When I have set this watch at 12:00 noon on Ist February this year. Which time will be shown by this watch at 3 O'clock on the same day.

A sum of money at compound interest becomes Rs. 650 at the end of one year and Rs. 676 at the end of the second year. The sum of money is :

If sqrt2:(1+sqrt3)::sqrt6:x then x=

(A + B) working together can finish certain piece of work in 8 days and (B + C) can finish it in 12 days. If A works for 4 days and B works for 7 days, rest work is done by C in 9 days. In how many days C will finish the work working alone?

When we divide 15192327 by 99 the remainder will be :

In a 50 litre mixture of water and milk, water is only 20%. The milkman gives 10 liters of this mixture to a customer and then he adds up 10 liters of pure water in the remaining mixture. The percenatge of water in the final mixture is :

(2)/(3)of three-fourth of a number is :

Find the co-orduinates of the point which divides the join of the points (2, 4) and (6, 8) externally in the ratio 5 : 3 :

If sqrt(2)=1.4142, then find the value of 2xx(sqrt(2))/((2+sqrt(2))).

If f(x)=x^(n), n in N and (gof)(x)=ng(x), then g(x) can be :