नियंत्रण एवं समन्वय - L5 | जन्तु हॉर्मोन|भाग-2 | Chapter 7 | कक्षा 10 NCERT विज्ञान | Pooja Ma'am

The efficiencies of A, B and C are in the ratio 2 : 5 : 7 working together, they can complete a work in 10 days. In how many days will, A alone be able to complete 30% of that work? A, B और C की कार्य क्षमता 2 : 5: 7 के अनुपात में है | एक साथ कार्य करते हुए वे किसी कार्य को 10 दिनों में समाप्त कर सकते हैं | इस कार्य का 30% भाग समाप्त करने में A को अकेले कितना समय (दिन ) लगेगा ?

If L = 39.5 , Delta_(1) = 6 , Delta_(2) = 9 and c = 10 , then find the mode of the data .

Previous Class Revision|NCERT प्रश्नावली 7.5 का हल भाग-2|सारांश

Find the H.C.F. and L.C.M. of 2/5, 7/10, 14/16 and 36/65

If y = tan ^ (- 1) ((1) / (1 + x + x ^ (2))) + tan ^ (- 1) ((1) / (x ^ (2) + 3x + 3)) + tan ^ (- 1) ((1) / (x ^ (2) + 5x + 7)) then y '(0) = (i) - (3) / (10) (ii) - (5) / (10) (iii) - (7) / (10) (iv) - (9) / (10)

study the following information carefully and answer the questions given below it. An exhibition is open for pubic since 9 am till 3 pm and again since 4 pm till 10 pm in a day. There are 12 batches of 1 hour each. The entry ticket bears a pass code made up of seven words, which changes every hour following a particular rule. The pass codes for 4 pm to 10 pm are same as those for respective hours during 9 am to 3 pm i.e., the pass code for 4 pm to 5 pm is same as that of 9 am to 10 am and so on. Following is an illustration of the code and steps of rearrangement for subsequent clock hours. First batch : 9 am to 10 am (4 pm to 5 pm) Pass code : dig more and you will find water Second batch : 10 am to 11 am (5 pm to 6 pm) Pass code : and dig find you water will more Third batch : 11 am to 12 noon (6 pm to 7 pm) Pass code : find and will you more water dig and so on. If the pass code for 5 pm to 6 pm is 'out in above over the field end', what will be the pass code for 1 pm to 2 pm ?

A cylinder of oxygen, used as medical aid, has a volume of 16 L. It is filled to a pressure of 1.37 x× 10^(7) Nm^(–2) above the atmospheric pressure at room temperature of 300 K. When in use, the flow rate at atmospheric pressure is 2.4 L//"min" . How long will the cylinder last? Atmospheric pressure is 10^(5) Nm^(– 2) .