Given expression = (69 - 14 x 3 + 2) / [ 9 x 5 - (5)2]
= (69 - 42 + 2) / (45 - 25)
= 29 / 20
= 1.45
Given expression = [(272 - 32) (124 + 176)] / (17 x 15 - 15)
= (240 x 300 ) / 240
= 300
Given expression = (7 + 7 + 7 ÷ 7) / (5 + 5 + 5 ÷ 5)
= (14 + 1) / (10 + 1)
=15 / 11
x = 13200 - 9873 = 3327
Given expression = 42060 / 15 + 5
= 2804 +5
=2809.
Let be the ten's digit be P and unit's digit be Q.
The two-digit number = 10P + Q
(where, P > Q)
According to the question,
P + Q = 14 ......(i)
and P - Q = 2 .......(ii)
solving Eqs. (i) and (ii), we get
P = 8 and Q = 6
? Required product = 8 x 6 = 48
Given expression = (48 - 12 x 3 + 9) / (12 - 9 ÷ 3)
= (48 - 36 + 9) / (12 - 3)
= 21 / 9
= 7 / 3
Given expression = .01 x .3 ÷ .4 x .5
= .0015 ÷ .4
= .00375
Given expression = .25 - .025
= .250 - .025
= 0.225
Given expression = 4 - 3.6 ÷ 4 + 0.2 x 0.5
= 4 - 0.9 + 0.1
= 3.2
Given Exp. = 0.5 x 0.5 + 0.5 ÷ 5
= 0.25 + 0.1
= 0.35
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