A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?
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(1155) +(18 − 6) × 9 =?
Given,(1155) +(18 − 6) =?
=5 + 12 × 9 =5 + 108
=113
In the given figure, PQ is a diameter of the semicircle PABQ and O is its center. AOB = 64 deg. BP cuts AQ at X. What is the value (in deg) of AXP?
In the given figure, two identical circles of radius 4 cm touch each other. A and B are the centres of the two circles. If RQ is a tangent to the circle, then what is the length (in cm) of RQ?
For x > 0, what is the minimum value of x + x+22x?
A shopkeeper marks up his wares by 80% and offers 20% discount. What will be the selling price (in Rs) if the cost price is Rs 450?
A vendor buys pens at the rate of 4 for Rs 5 and sells at the rate of 4 for Rs 3. What will be the result?
The expression 52n –23n has a factor?
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