Using Euler’s formula, find the value of P, Q and R.
A boat goes 32 km upstream and 36 km downstream in 7 hours. In 9 hours, it can go 40 km upstream and 48 km downstream. If x represents the speed of the boat in still water in km/hr and y represents the speed of the stream in km/hr, then_______.
A x + y = 12, x – y = 8
B x + y = 5, x – y = 11
C x + y = 6, x – y = 10
D x + y = 10, x – y = 6
A rectangular park is 100 m by 50 m. It is surrounded by semicircular flower beds all round. Find the cost of levelling the semicircular flower beds at 60 paise per m2.
A ₹ 31425
B ₹ 28260
C ₹ 352.40
D ₹ 282.60
the correct answer is supposed to be 5887.5 rupees
The given chart shows the number of eggs produced on a farm in the first five months of the year.
Which of the following statements is Correct?
A The number of eggs produced in April were less than in February.
B The number of eggs produced in May were less than in March.
C The number of eggs produced in January were less than in March.
D The number of eggs produced in May were less than in February.