Question
In a certain code language '3 6 9' means 'consider
particle depth', '5 0' means 'below su6ace' and '3 5 8' means 'consider earth surface'. How is 'below' written in that code?Solution
'3 6 9’ - 'consider particle depth'……. (i) ‘5 0' - 'below su6ace' ……. (ii) '3 5 8' – ‘'consider earth su6ace'….. (iii) From (ii) and (iii), code for ‘surface' is ‘5. We know the code for ‘surface' , so from (ii), ‘0’ is the code for ‘'below’.
22% of 400 + √ ? = 34% of 800 - 25% of 400
12.5% of 45 % of 480 + 957/29 = ? -14 × 15
125% 0f 74÷37×48×? =192 ×√225
25% of (?) + (1/4)of 5600 = 2500 – 20% of 1940Â
240 + 25% of 420 – 145 =? + (2.5 + 8.5) 2
520% of 360 – 12% of 400 = ? x 4
?% of 740 – 8% of 650 = 7.2
Solve the following:
523 + 523 x 523 ÷ 523
116*2/3% of 18600 + 666*2/3% of 1290 = 457*1/7% of 1750 + 555*5/9% of 3150 + ?
Find the HCF of 15x2 + 8x – 12, 3x² + x – 2, 3x² - 2x, 9x² - 12x + 4
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