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A student loses a mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks, how many of them were correct ?
Created: 6 months ago |
Updated: 1 day ago
৩১
৩৭
৩৩
২৭
Job Solution
Bangladesh Krishi Bank
Krishi Bank - Senior Officer - 20.04.2012
গণিত
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If 6-4x⩽14 than
Created: 5 months ago |
Updated: 15 hours ago
x⩽ 2
x⩾2
x⩽-2
x⩾-2
x>-2
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যদি a>b এবং c<0 হয় তবে নিচের কোনটি সত্য?
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ac>bc
AC
a
c
>
b
c
কোনোটিই নয়
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Bangladesh Krishi Bank
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What is the least integer that is a sum of three different primes each greater than 20 ?
Created: 5 months ago |
Updated: 15 hours ago
69
73
৭৫
79
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Bangladesh Krishi Bank
Krishi Bank - Assistant Officer - 22.06.2007
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Which of the following equations is not equivalent to
25
x
2
=
y
2
-
4
Created: 5 months ago |
Updated: 15 hours ago
25
x
2
+
4
=
y
2
75
x
2
=
3
y
2
-
12
25
x
2
=
(
y
+
2
)
(
y
-
2
)
5
x
=
y
-
2
None of the above
Job Solution
Bangladesh Krishi Bank
Krishi Bank - Assistant Officer - 22.06.2007
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if
(
x
-
1
)
2
=
400
,
W
h
i
c
h
o
f
t
h
e
f
o
l
l
o
w
i
n
g
c
o
u
l
d
b
e
t
h
e
v
a
l
u
e
o
f
x
-
5
?
Created: 5 months ago |
Updated: 15 hours ago
১৫
14
-24
-25
-26
Job Solution
Bangladesh Krishi Bank
Krishi Bank - Assistant Officer - 22.06.2007
গণিত
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