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Start learning 50% faster. Sign in nowFirst month = Rs 200 Second month = Rs 180 Third month =Rs 160 Sum = n/2 {2a + ( n – 1 )d] a = 200 d = - 20 = (11/2) [2 x 200 + ( 11 – 1 ) (-20)] = (11/2) [400 – 20] = (11/2) x 200 = 1100 P = (200 x 11)/2 = 1,100 (P x R x T)/100 = S.I (1100 x R x 1)/(100 x 12) = 20 R = (12 x 20)/11 = 21(9/11) %
In a box there are 3 red, 6 blue, and 9 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
There are (m + 6) red roses, (m + 12) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 4/15, then find the valu...
If the letters of the word PLAYERS be arranged at random, what is the probability that there are exactly five letters between P and S?
A bag contains 19 white and some black balls. If the probability of drawing a black ball from the bag is twice that of drawing a white ball, find the nu...
R goes to the gym either by cycle, car, or walking. On a specific day, the probability of him going by car is 0.3 less than the probability of walking a...
A dice is rolled six times. What is the probability that a six appears on the sixth roll for the second time in 6 rolls?
In a group of artists, there are 10 dancers and 8 singers. If four artists are to be selected at random, what is the probability that 2 dancers and 2 si...
A question is given to Saket, Ankush and Prem. Probability that Saket, Ankush and Prem can solve the question is 1/3, 2/5 and 1/2. Find the probability ...
There are 30 cars standing in a parking lot which consist of silver, grey and white cars. The number of grey and white cars are equal, and the number of...
The probability of selecting a rotten egg randomly from a basket of 250 eggs is 0.2. What is the number of rotten eggs in the basket?
