Practice Mathematical operation Questions and Answers

• After interchanging "×" and "÷", "7" and "4", which of the following equations becomes correct?
• Which of the following interchange of sign would make the given equation correct? 45 × 9 + 5 ÷ 4 = 25
• If ‘P’ means ‘+’, V means ‘x’, T means ‘-‘ and ‘Q’ means “÷’ , then find the...
• If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplication‘ and ‘×’ means ‘division’ , then find the ...
• Which signs should be interchanged to make the given equation correct.  51 ÷  3 + 17 x 14 - 2 = 6
• A toy is sold for Rs. 800 at 60% profit when profit is calculated on selling price. Find the profit% on cost price?
• If ‘-‘ stands for division ‘+’ stands for subtraction ‘÷’ stands for multiplication ‘×’ stands for addition, then which one of the follow...
• If four hats are picked at random, what is the probability that one is green, two are blue and one is red?
• A seller sold a vehicle for Rs. 81,000 with the loss of 10%. At what price be sold to earn 10% profit?
• The given equation has been solved on the basis of a certain rule. Find the correct answer for the unsolved equation on that basis: If a ÷ b = (a + ...
• Which of the following interchange of sign would make the given equation correct? 45 × 9 + 5 ÷ 4 = 25
• If ‘P’ means ‘+’, V means ‘×’, T means ‘-‘ and ‘Q’ means “÷’ , then find the value of the expression given below: 30 P 10 Q 2 V 2...
• If ‘–‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷ ‘ means ‘multiplication...
• If ‘+’ means ‘× ’, ‘–‘ means ‘÷ ‘, ‘× ’ means ‘ – ‘ and ‘÷ ‘ means ‘+‘, then what will be the value of 24 ÷  55...
• Which two signs should we interchange inorder to make the given equation true? 36 × 5 - 84 ÷ 4 + 50 = 151
• If '$ means +',  '# means –,  '@ means ×' and  '* means ÷', then what is the value of  ' 16 $ 4 @ 5 # 72 * 8 ' ?...
• If % means +, @ means -, # means × and $ means ÷, then what is the value of : 26 % 40 @ 56 $ 7 # 2
• In how many different ways can the letters of the word 'COMPUTER' be arranged in such a way that the vowels always come together?
• If ‘ × ’ means ‘ + ’. ‘+’ means ‘÷’, ‘-’ means ‘×’ and ‘÷’ means ‘-’, then 9 × 8 – 5 + 40 ÷ 3 = (?) ...
• If '+' means '–', '–' means '×', '÷' means '+' and '×' means '÷', then ' 30 – 12 + 20 × 10 ÷ 10 ' = (?) ...
• Two trains start at the same time from Dehradun and Jaipur and proceed toward each other at the speed of 55 km/hr and 25 km/hr respectively. When they meet...
• If ‘A’ denotes ‘÷’, ‘B’ denotes ‘x’, ‘C’ denotes ‘+’ and ‘D’ denotes ‘-’.Then find the value of 12 B 9 A 3 C 28 A ...
• If × stands for 'addition', ÷ stands for 'subtraction', + stands for 'multiplication' and - stands for 'division', then 31 × 18 ÷ 20 - 5 + 9 =...
•   If $ means +, # means - , @ means x and * means ÷, then what is the value of 22 $ 3 @ 10 # 21 * 7 =?
• If P means ‘multiplied by’, T means ‘subtracted from’, M means ‘added to’ and B means ‘divided by’, then 40 B 8 P 8 T 14 M ...
• If ‘’ means ‘addition’, ‘%’ means ‘multiplication’ and ‘$’ means ‘division’, then 55 > 24 $ 4 < 8 % 6 = ? ...
• If '>' means 'Addition', '$' means 'Divide', ' 32 $ 8 < 6 % 5 ' = (?)
• If 22 – 16 means 352, 450 + 50 means 9, 9 ÷ 3 means 12, 11 x 8 means 3, then ' 280 – 5 x 240 ÷ 450 + 9 x 26' = ?
• If 34 – 28 means 952, 544 + 8 means 68, 20 ÷ 5 means 25, 20 x 10 means 10, then 375 – 11 x 270 ÷ 550 + 11 x 35 = ? ...
• If, 40 – 14 means 560, 168 + 8 means 21, 26 ÷ 2 means 28, 8 x 7 means 1, then 410 – 7 x 290 ÷ 350 + 7 x 21 = ?
• If P denotes ‘multiplied by’, T denotes ‘subtracted’, M denotes ‘added to’ and B denotes ‘divided by’, then 48 B 6 P 15 T 14 M 12 =?...
• If P denotes ‘multiplied by’, T denotes ‘subtracted from’, M denotes ‘added to’ and B denotes ‘divided by’, then 50 B 5 P 16 T...
• 51.884 ×  12.91 ×  16.502 =?
• 0.75% of 705 + 2.25% of 225 + 2.03% of 203 =?
• If + means ÷, × means –, – means ×,  ÷ means +, then 32 + 16 – 13 x 18 ÷ 2 = ?
• Rachit walks a distance of 5 Km towards North, then turns to his left and walks for 3 Km. He again turns left and walks for 5 Km. At this point he turns to...
• If 6$144 = 24, 8$232 = 29 then what is the value of 5$110 = ?
• If 14 (16) 8 and 28 (20) 5, then what is the value of A in 63 (A) 4?
•  If ‘ > ’ means ‘plus’, then ' 55 > 24 $ 4 < 8 % 6 ' = ?
• If ' + ' means ' × ', ' - ' means ' ÷ ', ' × ' means ' - ' and ' ÷ ' means ' + ' then 18 × 9 ÷ 3 + 8 - 4 = ? ...