Instructions
What should come in place of question mark (?) in the following questions ?
Solution
Expression : 1170 $$\div$$ 26 + (785 - 423 + ? ) = 440
=> $$\frac{1170}{26} + (362 + x) = 440$$
=> $$45 + 362 + x = 440$$
=> $$407 + x = 440$$
=> $$x = 440 - 407 = 33$$
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