Mathematical Operation questions Practice Question and Answer
8 Q: Which two signs should be interchanged to make the given equation correct?
20+5×3÷3-1=14
1115 06023b3c7e4d6c265698eaaaa
6023b3c7e4d6c265698eaaaa20+5×3÷3-1=14
- 1× and +false
- 2÷ and ×false
- 3÷ and +true
- 4× and -false
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Answer : 3. "÷ and +"
Q: If - means ×, × mean000000s +, + means ÷ and ÷ means -, then
4 × 4 + 16 - 16 ÷ 30 = ?
1382 160b6e50c84a0c2750054fe09
60b6e50c84a0c2750054fe094 × 4 + 16 - 16 ÷ 30 = ?
- 1-18false
- 2-22true
- 3-16false
- 4-23false
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Answer : 2. "-22 "
Q: What will be the difference between the first digit of the highest number as well as of the lowest number after the positions of the first two digits in each number of the following series 738, 429, 156, 273, 894 are reversed?
897 062ea7504efd77421d963353b
62ea7504efd77421d963353b- 14false
- 25false
- 36false
- 47true
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Answer : 4. "7"
Q: There are 120 students in a class, who read Maths or History or English. It is known that no student can read all three subjects. 24 read only Maths and History, 8 read only History and English and 21 read only Maths and English. 32 read only Maths and 13 only History. If 9 of the students who read only Maths start to read all three subjects, then find the percentage of students who read History?
992 062ea73034404a856fa1a0134
62ea73034404a856fa1a0134- 150%false
- 260%false
- 340%false
- 4None of thesetrue
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Answer : 4. "None of these"
Q: A tree increases annually by 1/8th of its height. By how much will it increase after 2 years, if it stands today 64cm high?
735 062ea672eceafbe581b76cb66
62ea672eceafbe581b76cb66- 181 cmtrue
- 275cmfalse
- 374 cmfalse
- 472 cmfalse
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Answer : 1. " 81 cm "
Q: Which of the following interchanges in signs will make the given equation correct?
17- 15 x 5 = 250
734 062e7e7eb6f92bf0da7c49231
62e7e7eb6f92bf0da7c49231- 1= and xfalse
- 2+ and -false
- 3= and -false
- 4x and -true
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Answer : 4. "x and -"
Q: If ‘+’ means ‘divided by’ ‘-’ means ‘add’, ‘×’ means ‘minus’ and ‘/’ means ‘multiplied by’, what will be the value of the following expression?
[{(5 × 10) - (16/4)} + (15 - 9)]/0
700 0624fe291ebff42398b9f6e47
624fe291ebff42398b9f6e47[{(5 × 10) - (16/4)} + (15 - 9)]/0
- 1120false
- 230false
- 3108false
- 40true
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Answer : 4. "0"
Q: If 49 @ 13 # 26= 98 and 57 # 13@ 247=3 then find the value of 46@23#3=?
903 06244060b0c8d6f4df13df759
6244060b0c8d6f4df13df759- 16true
- 28false
- 312false
- 426false
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