Possible numbers of events on throwing a dice = 6 Numbers on dice = 1,2,3,4,5 and 6 Prime numbers = 2, 3 and 5 Favourable number of events... View Article
The correct answer is (a) 4 The number 144 is a composite and it should have prime factors. Now let us know how to calculate the prime factors... View Article
Answer: The temperature at 12 noon = 10° C above zero The temperature is decreasing at 2° C per hour 8° C below zero = - 8° C So, total fall... View Article
Answer: We have the formula that (a−b)3 = a3 − b3 − 3ab(a−b) (a + b)3 = a3 + b3 + 3ab(a+b) The given question is (2x − 5y)3 − (2x + 5y)3 ... View Article
A salesman has the liberty to sell a hair dryer in his store at a price between Rs. 300 and Rs. 700. Profit earned by selling Profit = selling... View Article
Answer: A rational number is a number that is in the form of p/q, where p and q are integers, and q is not equal to 0. Any fraction fits... View Article
Answer: Let us assume the profit to be x The profit of A will be 3/5 x profit of B will be x - 3/5 x x - 3/5 x = 2/5 x ∴ profit of B will... View Article
Given Sec A + tan A = p-------(1) We know that Sec2 A - tan2 A = 1 From the identity a2 - b2 = (a + b)(a – b ) => (sec A + tan A)(sec A -... View Article
Given From the question, it is given that Selling price of washing machine = ₹ 13500 Percentage of loss = 20% Find out We have to find the... View Article
Applying division lemma to 65 and 117, we get 117 = 65 × 1 + 52 Since the remainder 52 = 0. So, apply the division lemma to the divisor 65... View Article
Answer: The elimination method is the process of eliminating one of the variables in the system of linear equations using the addition or... View Article
Answer: A number that has only two factors i.e. 1 and the number itself are known as Prime Numbers. Prime factorization is defined as a way of... View Article
Two-digit numbers divisible by 5 are 10,15,20,25.................................95 We note that here the common difference(d) is 5. Here the... View Article
First Faulty Phones = 1200 x (2 1/3%) =1200 x 7/3 x 100 = 28 Defective phones = 1200 x 13/3 x 100 = 52 So total defective and faulty phones are... View Article
Given 3/7 + (- 6/11) + (- 8/21) + (5/22) Taking L.C.M. of the denominators 7, 11, 21 and 22 and then solving it. Let us determine LCM. of 7,... View Article
Answer: Age of Ritesh = 13 years Age of Shreya = Ritesh's age - 2 Age of shreya = 13 - 2 Age of shreya = 11 years Age of Ram = age of shreya... View Article
