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Micro sims Pvt. ltd.. produces 1200 phones everyday. If out of these, 2 1/3 faulty and 4 1/3 are defective in packaging. Then how many non faulty and non defectives packaged phones are produced everyday?

First Faulty Phones = 1200 x (2 1/3%) =1200 x 7/3 x 100 = 28 Defective phones = 1200 x... View Article

Find the value. 3/7 + (-6/11) + (-8/21) + (5/22)

Given 3/7 + (- 6/11) + (- 8/21) + (5/22) Taking L.C.M. of the denominators 7, 11, 21 and 22... View Article

Ram is five years elder to his youngest sibling Shreya. Shreya is two years younger than her brother Ritesh. Ritesh is 13 years old and is Ram’s brother. How old will ram be in two years from now?

Answer: Age of Ritesh = 13 years Age of Shreya = Ritesh’s age – 2 Age of shreya = 13... View Article

A couple went for a picnic, they have five sons and each son has three sisters. Each sister has one baby. In total, how many people went for the picnic?

Answer: Thirteen people went for a picnic Total member of the family The number of sons = 5 The number... View Article

Define the term resistivity.

The resistivity of a substance is the resistance of a wire of that substance of unit length and unit area... View Article

Using euclid’s division Lemma find the HCF of 441 567 693

.According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers q... View Article

Solve the given equation. 2x + 7/5 – 3x + 11/2 = 2x + 8/3 – 5

Given \(\begin{array}{l}\frac{2x+7}{5}-\frac{3x+11}{2}= \frac{2x+8}{3}-5\end{array} \) Now by taking L.C.M on LHS for 2 and 5 is 10 Also taking LCM on... View Article

The Smallest 8 digit number is the successor of?

To find the successor of the Smallest 8 digit number let us find the predecessor of the Smallest 8... View Article

Maithli purchased a walkman from her friend. She then sold it for RS. 90. Had it been sold for RS.105, the gain would have been 1/4 of the former loss. What is the cost of the walkman?

Suppose, the price of Walkman purchased by Maithli = x When loss occurred Loss = x – 90 When profit... View Article

Write the zeros of polynomial x² – x – 6

Answer: A polynomial is an algebraic expression in which the exponent on any variable is a whole number. Polynomial’s degree... View Article

If one of the zeroes of the quadratic polynomials (k – 1) x² + 1 is 2 , then the value of k is?

Let Quadratic polynomial P(x) = ( k – 1 )x² + kx + 1. → P(x) = ( k -1... View Article

Solve the quadratic equation 100x² -20x + 1 = 0 by factorization

Given that 100x2 − 20x + 1 = 0. Solution The quadratic polynomial in LHS can be expressed as a... View Article

Express 36 as a sum of two odd primes.

Answer: A prime number is a positive integer having exactly two factors. If p is a prime, then its only factors are... View Article

Factorise x³ – 3x² – 9x – 5

Answer: A polynomial is an algebraic expression in which the exponent on any variable is a whole number. Polynomial’s degree... View Article

Fill in the blanks: (a) 1 lakh = ___ ten thousand. (b) 1 million = _ hundred thousand. (c) 1 crore = _ ten lakh. (d) 1 crore = _ million. (e) 1 million = _____ lakh.

a)1 lakh = 1,00,000 Ten thousand= 10,000 1 lakh= 10 ten thousand b)1 million = 1,000,000 1 hundred thousand= 1,00,000... View Article

A number becomes a perfect square when we subtract 1 from it. Which of the given options CANNOT be the last digit of that number? a) 2 b) 4 c) 5 d) 0

The correct answer is (b) 4 If we check the squares of numbers from 1 to 10, the unit digit of... View Article

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