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Ratio and Proportions

RATIO AND PROPORTIONS The number of times one quantity contains another quantity of the same kind is called the Ratio of the two quantities. The ratio 2 to 3 is written as 2:3 or . 2 and 3 are called the terms of the ratio. 2 is the first terms (is also called antecedent) and 3 is the second term (is also called consequent). COMPOUND RATIO Ratios are compounded by multiplying together the antecedents for a new antecedent, and the consequents for a new consequent.                                                                                                      a x c x e ·          Ratios  a:b,c:d, and e:f  ...
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ADDITION AND SUBTRACTIONS

GENERALLY IN BANK EXAM THEY USE TO GIVE QUESTIONS LIKE IF ADDITION TO THE SAME NUMBER 1. 4+44+444+4444 4+44+444+4444 1 2 3 4 4X(1234) answer is 4936 Same way calculate below 2. 8 + 888 + 8888 + 88888 ? a) 97760 b) 98572 c) 98672 d) 97672 e) None of the above 3. 707.325+1923.82+58.009+564.943+65.6 AND WE HAVE TO SOLVE THIS IN QUICKER WAY LIKE WRITE LIKE 707.325 1923.820 58.009 564.943 65.600 ------------------ 3391.697 Practice makes man perfect …. practice few more sums… Let see some Addition and Subtraction in a single row 1. 412-83+70= Add 412+70=782 =>782 -83=399 2. 5124-829+731-435 Add (5124+731)- (829+435) 5855-1264=4591  EXAMPLE 1:   Solve 4433.764 – 2211.993 – 1133.667 + 3377.442 Here, 4433.764 = 4434 2211.993 = 2212 1133.667 = 1134 3377.442 = 3377 Now simplify, 4434 –  2212 – 1134 + 3377 = 4466
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