A sum of money doubles itself in 4 years at simple interest, in how many years, it would become 7 times of itself?
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In a classroom, a student is ranked 12th from right and 9th from left. How many students are there in total?
A person pays a tax of 10%,if his salary increases by 10% he need to pay a tax of 15%.The total gain he obtains after increment in salary is 350Rs .What is his salary?
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If the equation x2 - 3x + a = 0 has the roots (0,1) then value of a is ?
rom 7am to 11am it rained 2.25 inches.at 11am the rain increased to fall at rate oh 1.25inches every 2 hours.how many inches of rain landed on the ground by 5pm
if a 36 cm thread is used to wrap a book , lengthwise twice and breadthwise once, what is the size of the book?
CALIBRATION PROCEDURE FOR HPLC
There is a carem board where 4 No of player can play at a time but 5 No of player have to play with every for gain personal score(not double).In this case how many total minimum No of game /meach will be play..
A man told that " day before yesterday i was 22, next year on my birthday i will be 25". Find out my birthday date?
X is 3 years younger to Y. X's father is a businessman who invested 10000/- at 8% rate of interest n obtained his amount after 10 years. Y's father is a job holder who invested around 20000 at 2% rate n obtained his amount after 20 years.Now Compunded both of dem get around ABC rs/- (dnt remenbr). After 5 years the ratio of ages of X n Y is 1:2. Now X's father is 20 years older to Y n Y' father is 30 years more than X. After 20 years again. X's mother asks X's father to purchase a LCD TV which costs around 45000/-. what is the age of X n Y together
3 machines can complete the work in 4,5, and 6 hours respectively. due to power failures they did the work alternatively. Then what is time taken to complete the work?
two friends A,B are running up hill and then to get down! length if road is 440 yards A on his return journy met B goin up at 20 yards from top,A has finished the rase .5 Minuit earlier than B,then how much time A had taken to complete the rase.
What number comes next in the sequence: 10, 9, 60, 90, 70, 66?