Q86. How many odd numbers are there between 42 and 400??
a) 178
b) 179
c) 189
d) 187
A. (b)
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Q87. How many even numbers are there between 42 and 400 ?
a) 178
b) 180
c) 179
d) 182
A. (a)
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Q88. How many odd and even numbers are there between 42 and 400 ?
a) 350
b) 347
c) 357
d) 360
A. (c)
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Q89. Find the sum of odd numbers between 42 and 400.
a) 39559
b) 39545
c) 39549
d) 35235
A. (a)
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Q90. Find the sum of even numbers between 42 and 400.
a) 39332
b) 39334
c) 39330
d) 39338
A. (d)
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I want solution for 155 question
Solution for Question 15:
The difference in 1 box = 45 – 27 = 18
Extra amount he has to pay to buy 27 boxes this year = 27 * 18 = 486$
Sol: 46
Let x, y & z be no of boxes George, Mark or Henry can paint in one day.
From given data,
20x + 20y = 720, ∴ x + y = 36 …(1)
24y + 24z = 720, ∴ y + z = 30 …(2)
15x + 15z = 720, ∴ x + z = 48 …(3)
Solving (1), (2) & (3),
x = 27
y = 9
z = 21
Now, to calculate no of boxes painted –
Boxes painted = 4x + 8y + 8z
Boxes painted = 4×27 + 8×9 + 8×21
Boxes painted = 108 + 72 + 168
Boxes painted = 348 boxes