91. Given
exp. = 4.59 /36 + 0.6 – 0.2 = 4.59 /2 + 0.6 = 2.295 + 0.6 – 0.2 = 2.695
92. Let
64.4 – 34.7125/6.25 of X =1. Then, 6.25 of X = 29.6875.
X =29.6875/6.2 = 2968.75 /625 = 4.75 = 4.75 = 4 3/4
93. Given
exp. = 2.002 + 7.9 { 2.8 – 6.3 x 2.1 + 15.6}
= 2.002 + 7.9 {2.8 -13.23 + 13.23 + 15.6 } = 2.—2 + 7.9 x 5.17
= 2.002 + 40.843 = 42.845.
94. Let
24 – [2.4 – {.24 –{24 x 2 – (.024 –X)}] = 22.0584.
Then, 24 – [2.4 –(.48 -.024 +X}] = 22.0584 – 22.0584
24 – 1.944 + X = 22. 0584
X = 2.0584 – 22.056 = 0.0024.
95. Let
3 –[1.6 –{ 3.2 + 2.25/X)}]= 0. 65.
Then, 3 – [ 1.6 –{3.2 – 3.2 – 2.25/X }] = 0.65
3-[ 1.6 + 2.25 /X ] = 0.65
3 – 1.6 – 2.25/X =0.65
2.25/X = 1.4 – 0.65
