Let the fixed charge for first 7 days be Rs x and Additional charge per day = Rs y As per question Sahil paid = Rs 215 for 15 days = First 7 days charge + additional charge per day × total days = x + 8 y = 215…………(i) Ravi paid Rs 305 for Rs 21 days = x + 14 y = 305…………(ii)  By solving (i) and (ii), we get y = 15 So, the additional charge per day = Rs 15 By putting the value of y in (i), we get x + 8 y = 215 x + 8 × 15 = 215 x = 215 – 120 = Rs 95 Fixed charge for first 7 days in Rs 95.
Which of the following statements is INCORRECT with respect to microbial enzymes:
World food safety day celebrated on?
The main stem of a tree trained under the open center or vase system is typically cut at what height?
A fertile soil must contain all the 3 major nutrients namely___________ for basic plant nutrition, in addition to 9 key micro nutrients.
Match the following:
1.        Mitochondrion:                              A- Suicidal bag
2. Â...
The element is found highest in earth crust is:
Black heart is a physiological disorder of
The plant enzymes bromelain, ficin and papain are:
Which of the following state has highest inland water resources in the form of brackish water?
A method of asexual propagation in which a stem is made to produce roots while still attached to the parent plant is calledÂ
