For what value of x between -4 and 4, inclusive ,is the value of x2 -10x + 16 the greatest?
what is the value of 28×2442×8=?
A boy was asked to multply a number by 7/8 instead he divided the number by 7/8 and got the result 15/14 more than what he should have got if he had multiplied the number by 7/8. The number is ---
The average age of a group of 10 students is 15 years . when 5 more students joined the group , the average age rise by 1 year. what is average age of the newly joined students?
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17
18
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3 men or 5 women or 8 boys can finish a work in 38 days. How many days will be required to complete the same work by 6 men , 10 women and 6 boys together ?
If the perimeter of a rectangular garden plot is 34 feet and its area is 60 square feet, what is the length of each of the longer sides?
A candidate scoring 25% marks in an examination fails by 30 marks while another candidate who score 50% marks gets 20 marks more than the minimum pass marks. what is the minimum pass mark?
A man sold his watch at a loss of 5% . Had he sold it for Tk. 56.25 more he would have gained 10% . what was the cost on of the watch ?
A dishonest trader mixes 2 kg of vegetable ghee costing Tk. 45 a kg with 3 kg of standard ghee costing Tk. 70 per kg. He sells the mixed ghee at Tk. 65 per kg. what is his percentage of profit?
The maximum recommended pulse rate R, when exercising .for a person who is x years of age is given by the equation R = 176 - 0.8 x . what is the age, in years , of a person whose maximum recommended pulse rate when exercising is 140?