Mathematical Operation questions Practice Question and Answer
8 Q: If A denotes ‘+’, B d enotes ‘×’, C denotes ‘−’ and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation?
41 C 29 A (38 B 3) D 19 A 61 C 17 = ?
943 0644fa514223d4c08a7d6da99
644fa514223d4c08a7d6da9941 C 29 A (38 B 3) D 19 A 61 C 17 = ?
- 170false
- 266false
- 358false
- 462true
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Answer : 4. "62"
Q:Direction: Some equations have been solved on the basis of certain system. Find the correct answer for the unsolved equation on that basis.
If 98 – 39 – 27 = 31, 87 – 38 – 34 = 20, then 79 – 25 – 12 = ?
942 0640b2a2986fd41614681a27e
640b2a2986fd41614681a27e- 151true
- 222false
- 342false
- 415false
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Answer : 1. "51 "
Q: Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
14 * 5 *41 * 76 * 35
933 064491317cd6ea382cf86a038
64491317cd6ea382cf86a03814 * 5 *41 * 76 * 35
- 1×, −, =, +false
- 2×, +, −, =true
- 3−, +, =, ×false
- 4+, ×, =, −false
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Answer : 2. " ×, +, −, = "
Q: Which two signs need to be interchanged to make the following equation correct?
73 – 13 × 42 ÷ 14 + 56 = 56
918 0643e7d4501d99786d0f0e227
643e7d4501d99786d0f0e227- 1+ and ×true
- 2× and ÷false
- 3– and +false
- 4– and ×false
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Answer : 1. "+ and ×"
Q: After interchanging which two signs will the value of the given expression be ‘35’?
13 + 91 − 3 ÷ 529 × 23
917 0642e9aa9dcb650c1457eda76
642e9aa9dcb650c1457eda76- 1+ and –false
- 2× and ÷true
- 3× and +false
- 4- and ÷false
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Answer : 2. "× and ÷"
Q: By interchanging the given two signs which of the following equation will be correct?
÷ and +
915 0647865bdd0c6d8fd0853292b
647865bdd0c6d8fd0853292b÷ and +
- 18 + 4 × 5 ÷ 2 – 6 = 7false
- 216 + 8 × 2 ÷ 6 – 4 = 8false
- 318 + 2 × 6 ÷ 3 – 7 = 50true
- 411 + 8 × 16 ÷ 4 – 7 = 20false
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Answer : 3. "18 + 2 × 6 ÷ 3 – 7 = 50"
Q: By interchanging the given two signs, which of the following equations will NOT be correct?
× and –
I. 17 – 21 + 86 ÷ 2 × 13 = 387
II. 10 + 63 – 12 × 259 ÷ 7 = 739
913 0642e785232185cce372317c1
642e785232185cce372317c1× and –
I. 17 – 21 + 86 ÷ 2 × 13 = 387
II. 10 + 63 – 12 × 259 ÷ 7 = 739
- 1Equation Ifalse
- 2Equation IItrue
- 3Neither I nor IIfalse
- 4Both I and IIfalse
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Answer : 2. "Equation II "
Q: By Interchanging the given two numbers which of the following equation will be not correct?
3 and 8
907 064785d4cf295c14cc803f0cd
64785d4cf295c14cc803f0cd3 and 8
- 17 + 3 – 4 ÷ 2 × 8 = 9false
- 26 ÷ 2 × 8 + 3 – 1 = 17true
- 38 – 3 + 6 × 2 ÷ 4 = –2false
- 42 + 3 – 6 ÷ 2 × 8 = 1false
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