Simplification practice Set 2
Simplification practice Set 2 Example 1: 60% of 300 - ?% of 160 = 132 Solution : 60 x 300 - ? x 160 / 100 x 100 = 132 180 - ? x 1.6 = 132 ? =... Continue reading →
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Time and work practice set 1
Time and work practice set 1 Example 1: Two boy alone or three girl alone can complete a piece of work in 4 days. In how many days can 1 girl and 1 boy together complete the same piece of work... Continue reading →
Statistics Math Formulas
Statistics Math Formulas : Statistics Math Formulas : SETS : A = {2, 3, 4, 7, 8, 9, 12} 3 ∈ A 5 ∉ A SUBSET: B = {3, 8, 9} ⇒ B ⊆ A C = {1, 5} ⇒... Continue reading →
Mathematical Matrix formula
Mathematical Matrix formula: What is matrix ? In mathematics matrix is rectangle shape of array of number, symbol and expressions which is arranged in columns and rows. Suppose the dimension of matrix is 2 x 3 we can say two... Continue reading →
Simplification Practice Set 1
Simplification Practice Set 1 Example 1: (1097 - 447) / 5 = 26 x ? Solution: 650 / 5 x 26 = 5 Example 2: 640 / ? x 400 = 500 Solution : 640 x 4... Continue reading →
Permutation and Combination practice Set 1
Permutation and Combination practice Set 1 Example 1: In how many different way the word “HOPE” can be arranged so as vowel always come together ? Solution : n = 4, r = 4 By formula : 4Pr = 4!... Continue reading →
Average practice set 1
Average practice set 1 Example 1: The average of four consecutive even numbers A, B, C and D respectively is 35. What is the product of A & C ? Solution : let the first A = x 35 =... Continue reading →
Integration Mathematical Formula
Integration Mathematical Formula : 1. Common Integrals —————————————- —-Indefinite Integral——- ——-Integrals of Rational and Irrational Functions——- ——-Integrals of Trigonometric Functions—— ... Continue reading →
Profit and Loss Example Question & Answer
Profit and Loss Example Question & Answer Example #1 A Seller offers a cash discount of 20% and still makes a profit of 20%, when he further allows 16 articles to a dozen to a particularly sticky bargainer. How much... Continue reading →